Follow up post on GME answering common questions (e.g. if they short is still >100% of float, wouldn't that cause another short

1/ Official short interest is only posted twice per month. Daily estimates by data firms (e.g. S3 Partners) can be inaccurate, especially if there is high intraday volume and volatility
2/ De-grossing suggests that hedge funds facing existential loss likely to have already covered.

Short positions opened in last 3 days was ~35M shares all above $300 suggesting that the cost basis has been reset. The original shorters have likely covered already.
3/ There is a staggering 1.38m put options open vs. 233k call options. This 1.15m net put exposure means that MM likely owning ~11m shares short for delta hedging. These shares are unlikely to be squeezed
4/ Short squeeze and gamma squeeze likely to have already occurred. Continued share price increases likely driven by new investors joining WSB/RH. Buying of GME has now expanded beyond US to other countries.
5/ Hedge funds, long/short and high frequency traders likely to have also joined the trade. At some point, forward momentum will decline as buyer pool depletes.
6/ Gamma squeeze is a one-off. Market makers will be more prepared now with heighted risk management.
7/ In summary, it is dangerous to assume what has happened in the past will continue in the future. Should always re-test your initial assumptions

More from Finance

I'm lucky to attain financial freedom before 30.

I credit Fintwit for my learnings.

Here's 10 key concepts every investor must know:

1. $$ needed to retire
2. Researching a business
3. Reading annual reports
4. Reading earnings calls
5. Criteria of a multi bagger

(Read on...)

6. Holding a multi bagger
7. Economic moats
8. When to buy a stock
9. Earnings vs cashflow
10. Traits of quality companies

Here's my 10 favourite threads on these concepts:

1. How much $$ do you need to retire

Before you start, you must know the end game.

To meet your retirement goals...

How much $$ do you need in your portfolio?

10-K Diver does a good job explaining what's a safe withdrawl rate.

Hint: It's NOT


2. Research a business

Your investment returns are a lagging indicator.

Instead, your research skills are the leading predictor of your results.

Conclusion?

To be a good investor, you must be a great business researcher.

Start with


3. Reading annual reports

This is the bread and butter of a good business analyst.

You cannot just listen to opinions from others.

You must learn to deep dive a business and make your own judgments.

Start with the 10k.

Ming Zhao explains it
Ok here is the explanation. Grab a cup of coffee and read on. If you have not read/noticed this, you will see intraday options movement in a new light.


Say we have two options, one 50 delta ATM options and another 30 delta OTM option. Normally for a 100 point move, the ATM option will move 50 points and the OTM option will move 30 points. But in a high volatile environment, the OTM option will also move nearly 50 points

To understand why this happens, first understand why an ATM option is 50 delta. An ATM option has the probability of 50% of expiring as ITM. The price just has to close a rupee above the strike for the CE to be ITM and vice versa for PEs

Now think of a highly volatile day like today. If someone is asked where the BNF will close for the day or expiry, no one can answer. BNF can close freakin anywhere, That makes every option of an equal probability of being ITM. So all options have a 50% probability of being ITM

Hence, when a huge volatile move starts, all OTM options behave like ATM options. This phenomenon was first observed in the Black Monday crash of 1987 at Wall Street, which also gave rise to the volatility skew/smirk

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