<|begin_of_text|><|begin_of_text|><|begin_of_text|>My favourite indicator of market breath, the McClennan Summation Index, is finally beginning to get to a level where it is becoming interesting. A move into negative territory, though some ways to go, will herald the probability that stocks<wm> in these companies that are in decline to be affected. That being stated, with the latest news surrounding the Biden Administration, the fundamentals I had held onto, I'll be taking the next move.

I've calculated these probabilities to be as you expect.

**McLennan Summation Index (MSI):**

MSI = (n - 0.033)/n

where n is a column representing the growth rate of earnings (r)
n = 100, and 0 is</wm> not possible

Here is a portion of the previous calculation, for any further understanding:

```python
