as previously disclosed , we are undertaking a strategic evaluation of our business focusing on four key areas of our expense base : our organizational model , our real estate footprint , management of third party spend , and technology and operations efficiency . we plan to invest in key areas of growth aligned with our strategic plan , including etfs , fixed income , china , solutions , alternatives and global equities , while creating permanent annual net operating expense improvements of $ 200 million . a significant element of the savings will be generated from realigning our workforce to support key areas of growth as well as repositioning some of our workforce to lower cost locations . we expect $ 150 million of the savings to be achieved by 29 the end of 2021 with the remainder by the end of 2022. remaining restructuring costs related to the strategic evaluation are estimated to be in a range of $ 150 to $ 175 million over the next two years , with $ 119.0 million incurred in 2020. in 2019 , invesco completed the acquisition of oppenheimerfunds ( ofi ) , and the integration of our two firms . building on the combination with ofi , in 2020 we further deepened our relationships with clients in the us , expanded the capabilities we offered globally and further scaled our business for the benefit of clients and shareholders . the firm is also highly focused on delivering the additional capabilities achieved through the combination to institutional and non-us markets . managing our business and meeting client needs through covid-19 invesco is committed to helping our employees , our clients and our communities navigate the challenges presented by the impacts of covid-19 . the primary focus of our efforts is to ensure the health and safety of our employees while preserving our ability to serve clients and manage assets in a highly dynamic market environment . as always , we are committed to helping our clients achieve their investment objectives through disciplined long-term investing . to this end , we continue to proactively engage with our clients virtually to help them better navigate market volatility by providing thought leadership and other value-added services . we believe our client centric approach will enable our clients to emerge from this crisis stronger . to ensure we continue to meet client needs in a primarily remote-working environment , small select teams are working at alternate sites or operating in split shifts to mitigate the risks associated with the virus . some of our offices in locations across the globe have begun staged re-openings . we will continue to be responsive to the evolving threat of the virus and may re-close if necessary . decisions regarding openings and closings of our offices are supported by information from local government and health officials , as well as our own internal research regarding the needs of our employees and clients . our portfolio managers , research analysts and traders are successfully working remotely or in secure locations with access to all systems necessary to do their jobs and an ability to connect with their teams in managing client assets . additionally , our operational , control and support teams are primarily working in a remote environment . in light of the remote working environment , we continue to assess and enhance our business continuity plans as well as our internal controls with appropriate adjustments made to address the environment . this thoughtful , coordinated approach helps ensure our ability to continue to meet client needs and to run our business . other external factors impacting invesco invesco has a larger global presence in key markets than most of our peers . as one of the leading investment managers in the uk and europe , we were more impacted by continuing uncertainties surrounding brexit . additionally , our strong position in asia-pacific meant that invesco was more affected than others by market uncertainties over the trade issues between china and the u.s. on december 24 , 2020 , the uk and the eu ( european union ) announced a trade deal after months of negotiations . the deal came into force effective december 31 , 2020. while the deal announced largely covers goods , details related to the financial services industry are not specifically outlined within the agreement . the uk and the eu aim to agree by march 2021 to a memorandum of understanding establishing a framework for regulatory cooperation on financial services . the brexit outcome at the end of 2020 was largely anticipated by the market . invesco is a global business and has been committed for many years to meeting clients ' needs across europe in both eu and non-eu countries . invesco has local teams of experts focused on servicing local clients and fund ranges in different countries to meet a variety of local , country and regional client needs . we currently have a presence in 12 countries across europe . our staff will be able to continue to reside and work across the relevant regions . the change in the uk 's status from an eu to a non-eu country will not change invesco 's focus or commitment to serve its clients across europe . we are fully prepared to continue to operate and deliver for our clients with minimal disruption . investment exposure to the london interbank offered rate ( libor ) based interest rates could impact our client portfolios . story_separator_special_tag however , aum mix in 2020 was impacted by flows into lower fee products , from the market impact of the covid-19 pandemic and from the growth in our qqq fund , all of which increased the proportion of lower-fee aum , which has lowered net revenue yield in 2020. as passive products generally have lower fees than active products , the aum shift towards passive has contributed to the declining net revenue yield . passive aum includes our qqq etf , for which we do not receive a management fee but which delivers significant marketing and brand value and increases invesco 's footprint , leadership and relevance in the etf market . at december 31 , 2020 , passive aum were $ 370.6 billion , representing 27.5 % of total aum at that date ; whereas at december 31 , 2019 , passive aum were $ 297.0 billion , representing 24.2 % of our total aum at that date . 35 also contributing to the overall decline , the net revenue yield specific to passive aum has declined , particularly from the impact of the growth of the qqq fund . at december 31 , 2020 , the qqq fund represented $ 152.5 billion , or 41.1 % of passive aum . at december 31 , 2019 , the qqq fund represented $ 86.9 billion , or 29.3 % of passive aum . in the year ended december 31 , 2020 , the net revenue yield on passive aum was 12.0 basis points compared to 14.6 basis points in the year ended december 31 , 2019 , a decrease of 2.6 basis points . market volatility in 2020 also contributed to investors moving into lower risk assets , such as money market and stable value funds , which are active funds with lower fees . we saw outflows from equity products and alternatives and inflows into fixed income and other relatively lower fee products . these changes have decreased the net revenue yield on active aum . at december 31 , 2020 , active aum were $ 979.3 billion , representing 72.5 % of total aum at that date ; whereas at december 31 , 2019 , active aum were $ 929.2 billion , representing 75.8 % of our total aum at that date . in the year ended december 31 , 2020 , the net revenue yield on active aum was 46.4 basis points compared to 48.6 basis points in the year ended december 31 , 2019 , a decrease of 2.2 basis points . the changes described above have adversely impacted our revenue and resulting revenue yields , and we expect they will continue to pressure revenues and yields in the near term . 36 changes in our aum by channel , asset class , and client domicile , and average aum by asset class , are presented below : total aum by channel ( 1 ) replace_table_token_8_th see accompanying notes immediately following these aum tables . 37 passive aum by channel ( 1 ) replace_table_token_9_th see accompanying notes immediately following these aum tables . 38 total aum by asset class ( 2 ) replace_table_token_10_th see accompanying notes immediately following these aum tables . 39 passive aum by asset class ( 2 ) replace_table_token_11_th see accompanying notes immediately following these aum tables . 40 total aum by client domicile ( 3 ) replace_table_token_12_th see accompanying notes immediately following these aum tables . 41 passive aum by client domicile ( 3 ) replace_table_token_13_th ( 1 ) channel refers to the internal distribution channel from which the aum originated . retail aum represents aum distributed by the company 's retail sales team . institutional aum represents aum distributed by our institutional sales team . this aggregation is viewed as a proxy for presenting aum in the retail and institutional markets in which the company operates . ( 2 ) asset classes are descriptive groupings of aum by common type of underlying investments . ( 3 ) client domicile disclosure groups aum by the domicile of the underlying clients . ( 4 ) the acquisition of oppenheimerfunds business on may 24 , 2019 added $ 224.4 billion in aum at that date . the acquisition of guggenheim investments ' etf business on april 6 , 2018 added $ 38.1 billion in aum during the second quarter of 2018. as of july 1 , 2018 , we began including 100 % of invesco great wall , which added $ 9.5 billion in aum during the third quarter of 2018. results of operations for the year ended december 31 , 2020 compared to december 31 , 2019 the discussion below includes the use of non-gaap financial measures . see “ schedule of non-gaap information ” for additional details and reconciliations of the most directly comparable u.s. gaap measures to the non-gaap measures . the results of the oppenheimerfunds acquisition are included from may 24 , 2019 ( date of acquisition ) , the results of guggenheim investments ' etf business are included from april 6 , 2018 ( date of acquisition ) and the results of intelliflo are included from june 4 , 2018 ( date of acquisition ) . 42 operating revenues and net revenues the main categories of revenues , and the dollar and percentage change between the periods , are as follows : replace_table_token_14_th _ ( 1 ) total revenue adjustments includes passed through investment management , service and distribution , and other revenues and equal the same amount as the third party distribution , service and advisory expenses . ( 2 ) net revenues are operating revenues less revenue adjustments , plus net revenues from invesco great wall , plus management and performance fees earned from cip . see “ schedule of non-gaap information ” for additional important disclosures regarding the use of net revenues . the impact of foreign exchange rate movements increased operating revenues by $ 13.2 million , equivalent to 0.2 % of total operating

cash and cash equivalents 1,408.4 — 1,408.4 1,049.0 — 1,049.0 1,147.7 — 1,147.7 restricted cash 129.2 — 129.2 — — — — — — cash and cash equivalents of cip 301.7 301.7 — 652.2 652.2 — 657.7 657.7 — total cash , cash equivalents and restricted cash per consolidated statement of cash flows 1,839.3 301.7 1,537.6 1,701.2 652.2 1,049.0 1,805.4 657.7 1,147.7 ( 1 ) these tables include non-gaap presentations . cash held by cip is not available for use by invesco . additionally , there is no recourse to invesco for cip debt . the cash flows of cip do not form part of the company 's cash flow management processes , nor do they form part of the company 's significant liquidity evaluations and decisions . policyholder assets and liabilities are equal and offsetting and have no impact on invesco 's shareholder 's equity . the impact of cash inflows/outflows from policyholder assets and liabilities are reflected within cash flows from operating activities as changes in receivables and or payables , as applicable . as discussed in note 2 , “ business combinations , ” the oppenheimerfunds acquisition purchase price was allocated to the assets acquired and liabilities assumed at fair value as of the date of the transaction . the issuance of common stock and preferred stock consideration represents a non-cash financing activity related to the statement of cash flows . 59 operating activities operating cash flows include the receipt of investment management and other fees generated from aum , offset by operating expenses and changes in operating assets and liabilities . although some receipts and payments are seasonal , particularly bonus payments which are paid out during the first quarter , in general , after allowing for the change in cash held by cip , and investment activities , our operating cash flows move in the same direction as our operating income . during 2020 , cash provided by operating activities was $ 1,230.3 million compared to $ 1,116.6 million provided during 2019 ( an increase of $ 113.7 million ) .


 Write a concise suspicious activity report of the following text delimited by triple backquotes. Return your response as a formal report which covers the key points highlighting the location,dates,entity names and account holder information in chronological order of the text.
     ```cash and cash equivalents 1,408.4 — 1,408.4 1,049.0 — 1,049.0 1,147.7 — 1,147.7 restricted cash 129.2 — 129.2 — — — — — — cash and cash equivalents of cip 301.7 301.7 — 652.2 652.2 — 657.7 657.7 — total cash , cash equivalents and restricted cash per consolidated statement of cash flows 1,839.3 301.7 1,537.6 1,701.2 652.2 1,049.0 1,805.4 657.7 1,147.7 ( 1 ) these tables include non-gaap presentations . cash held by cip is not available for use by invesco . additionally , there is no recourse to invesco for cip debt . the cash flows of cip do not form part of the company 's cash flow management processes , nor do they form part of the company 's significant liquidity evaluations and decisions . policyholder assets and liabilities are equal and offsetting and have no impact on invesco 's shareholder 's equity . the impact of cash inflows/outflows from policyholder assets and liabilities are reflected within cash flows from operating activities as changes in receivables and or payables , as applicable . as discussed in note 2 , “ business combinations , ” the oppenheimerfunds acquisition purchase price was allocated to the assets acquired and liabilities assumed at fair value as of the date of the transaction . the issuance of common stock and preferred stock consideration represents a non-cash financing activity related to the statement of cash flows . 59 operating activities operating cash flows include the receipt of investment management and other fees generated from aum , offset by operating expenses and changes in operating assets and liabilities . although some receipts and payments are seasonal , particularly bonus payments which are paid out during the first quarter , in general , after allowing for the change in cash held by cip , and investment activities , our operating cash flows move in the same direction as our operating income . during 2020 , cash provided by operating activities was $ 1,230.3 million compared to $ 1,116.6 million provided during 2019 ( an increase of $ 113.7 million ) .
```    
 Suspicious Activity Report : as previously disclosed , we are undertaking a strategic evaluation of our business focusing on four key areas of our expense base : our organizational model , our real estate footprint , management of third party spend , and technology and operations efficiency . we plan to invest in key areas of growth aligned with our strategic plan , including etfs , fixed income , china , solutions , alternatives and global equities , while creating permanent annual net operating expense improvements of $ 200 million . a significant element of the savings will be generated from realigning our workforce to support key areas of growth as well as repositioning some of our workforce to lower cost locations . we expect $ 150 million of the savings to be achieved by 29 the end of 2021 with the remainder by the end of 2022. remaining restructuring costs related to the strategic evaluation are estimated to be in a range of $ 150 to $ 175 million over the next two years , with $ 119.0 million incurred in 2020. in 2019 , invesco completed the acquisition of oppenheimerfunds ( ofi ) , and the integration of our two firms . building on the combination with ofi , in 2020 we further deepened our relationships with clients in the us , expanded the capabilities we offered globally and further scaled our business for the benefit of clients and shareholders . the firm is also highly focused on delivering the additional capabilities achieved through the combination to institutional and non-us markets . managing our business and meeting client needs through covid-19 invesco is committed to helping our employees , our clients and our communities navigate the challenges presented by the impacts of covid-19 . the primary focus of our efforts is to ensure the health and safety of our employees while preserving our ability to serve clients and manage assets in a highly dynamic market environment . as always , we are committed to helping our clients achieve their investment objectives through disciplined long-term investing . to this end , we continue to proactively engage with our clients virtually to help them better navigate market volatility by providing thought leadership and other value-added services . we believe our client centric approach will enable our clients to emerge from this crisis stronger . to ensure we continue to meet client needs in a primarily remote-working environment , small select teams are working at alternate sites or operating in split shifts to mitigate the risks associated with the virus . some of our offices in locations across the globe have begun staged re-openings . we will continue to be responsive to the evolving threat of the virus and may re-close if necessary . decisions regarding openings and closings of our offices are supported by information from local government and health officials , as well as our own internal research regarding the needs of our employees and clients . our portfolio managers , research analysts and traders are successfully working remotely or in secure locations with access to all systems necessary to do their jobs and an ability to connect with their teams in managing client assets . additionally , our operational , control and support teams are primarily working in a remote environment . in light of the remote working environment , we continue to assess and enhance our business continuity plans as well as our internal controls with appropriate adjustments made to address the environment . this thoughtful , coordinated approach helps ensure our ability to continue to meet client needs and to run our business . other external factors impacting invesco invesco has a larger global presence in key markets than most of our peers . as one of the leading investment managers in the uk and europe , we were more impacted by continuing uncertainties surrounding brexit . additionally , our strong position in asia-pacific meant that invesco was more affected than others by market uncertainties over the trade issues between china and the u.s. on december 24 , 2020 , the uk and the eu ( european union ) announced a trade deal after months of negotiations . the deal came into force effective december 31 , 2020. while the deal announced largely covers goods , details related to the financial services industry are not specifically outlined within the agreement . the uk and the eu aim to agree by march 2021 to a memorandum of understanding establishing a framework for regulatory cooperation on financial services . the brexit outcome at the end of 2020 was largely anticipated by the market . invesco is a global business and has been committed for many years to meeting clients ' needs across europe in both eu and non-eu countries . invesco has local teams of experts focused on servicing local clients and fund ranges in different countries to meet a variety of local , country and regional client needs . we currently have a presence in 12 countries across europe . our staff will be able to continue to reside and work across the relevant regions . the change in the uk 's status from an eu to a non-eu country will not change invesco 's focus or commitment to serve its clients across europe . we are fully prepared to continue to operate and deliver for our clients with minimal disruption . investment exposure to the london interbank offered rate ( libor ) based interest rates could impact our client portfolios . story_separator_special_tag however , aum mix in 2020 was impacted by flows into lower fee products , from the market impact of the covid-19 pandemic and from the growth in our qqq fund , all of which increased the proportion of lower-fee aum , which has lowered net revenue yield in 2020. as passive products generally have lower fees than active products , the aum shift towards passive has contributed to the declining net revenue yield . passive aum includes our qqq etf , for which we do not receive a management fee but which delivers significant marketing and brand value and increases invesco 's footprint , leadership and relevance in the etf market . at december 31 , 2020 , passive aum were $ 370.6 billion , representing 27.5 % of total aum at that date ; whereas at december 31 , 2019 , passive aum were $ 297.0 billion , representing 24.2 % of our total aum at that date . 35 also contributing to the overall decline , the net revenue yield specific to passive aum has declined , particularly from the impact of the growth of the qqq fund . at december 31 , 2020 , the qqq fund represented $ 152.5 billion , or 41.1 % of passive aum . at december 31 , 2019 , the qqq fund represented $ 86.9 billion , or 29.3 % of passive aum . in the year ended december 31 , 2020 , the net revenue yield on passive aum was 12.0 basis points compared to 14.6 basis points in the year ended december 31 , 2019 , a decrease of 2.6 basis points . market volatility in 2020 also contributed to investors moving into lower risk assets , such as money market and stable value funds , which are active funds with lower fees . we saw outflows from equity products and alternatives and inflows into fixed income and other relatively lower fee products . these changes have decreased the net revenue yield on active aum . at december 31 , 2020 , active aum were $ 979.3 billion , representing 72.5 % of total aum at that date ; whereas at december 31 , 2019 , active aum were $ 929.2 billion , representing 75.8 % of our total aum at that date . in the year ended december 31 , 2020 , the net revenue yield on active aum was 46.4 basis points compared to 48.6 basis points in the year ended december 31 , 2019 , a decrease of 2.2 basis points . the changes described above have adversely impacted our revenue and resulting revenue yields , and we expect they will continue to pressure revenues and yields in the near term . 36 changes in our aum by channel , asset class , and client domicile , and average aum by asset class , are presented below : total aum by channel ( 1 ) replace_table_token_8_th see accompanying notes immediately following these aum tables . 37 passive aum by channel ( 1 ) replace_table_token_9_th see accompanying notes immediately following these aum tables . 38 total aum by asset class ( 2 ) replace_table_token_10_th see accompanying notes immediately following these aum tables . 39 passive aum by asset class ( 2 ) replace_table_token_11_th see accompanying notes immediately following these aum tables . 40 total aum by client domicile ( 3 ) replace_table_token_12_th see accompanying notes immediately following these aum tables . 41 passive aum by client domicile ( 3 ) replace_table_token_13_th ( 1 ) channel refers to the internal distribution channel from which the aum originated . retail aum represents aum distributed by the company 's retail sales team . institutional aum represents aum distributed by our institutional sales team . this aggregation is viewed as a proxy for presenting aum in the retail and institutional markets in which the company operates . ( 2 ) asset classes are descriptive groupings of aum by common type of underlying investments . ( 3 ) client domicile disclosure groups aum by the domicile of the underlying clients . ( 4 ) the acquisition of oppenheimerfunds business on may 24 , 2019 added $ 224.4 billion in aum at that date . the acquisition of guggenheim investments ' etf business on april 6 , 2018 added $ 38.1 billion in aum during the second quarter of 2018. as of july 1 , 2018 , we began including 100 % of invesco great wall , which added $ 9.5 billion in aum during the third quarter of 2018. results of operations for the year ended december 31 , 2020 compared to december 31 , 2019 the discussion below includes the use of non-gaap financial measures . see “ schedule of non-gaap information ” for additional details and reconciliations of the most directly comparable u.s. gaap measures to the non-gaap measures . the results of the oppenheimerfunds acquisition are included from may 24 , 2019 ( date of acquisition ) , the results of guggenheim investments ' etf business are included from april 6 , 2018 ( date of acquisition ) and the results of intelliflo are included from june 4 , 2018 ( date of acquisition ) . 42 operating revenues and net revenues the main categories of revenues , and the dollar and percentage change between the periods , are as follows : replace_table_token_14_th _ ( 1 ) total revenue adjustments includes passed through investment management , service and distribution , and other revenues and equal the same amount as the third party distribution , service and advisory expenses . ( 2 ) net revenues are operating revenues less revenue adjustments , plus net revenues from invesco great wall , plus management and performance fees earned from cip . see “ schedule of non-gaap information ” for additional important disclosures regarding the use of net revenues . the impact of foreign exchange rate movements increased operating revenues by $ 13.2 million , equivalent to 0.2 % of total operating

