1) I'm hearing a lot about retail investors negotiating margin rates lower and going six-figures into margin, and it makes me wonder if this represents excessive risk-taking by the brokerages (i.e. like 1928). Presumably, automated liquidation of accounts reduces the risk to brokerages by limiting the span of time between margin call and asset liquidation. All the brokerages have to do is hedge the between-day move, to cover them for example if I am a penny away from margin call at the close on Monday, and then the market drops 5% at the open on Tues. How are they doing so? Are they buying options or swaps? Doing anything?
2) If all the brokerages are establishing automated margin call / liquidation software, in an attempt to control risk while simultaneously using near-zero margin rates to attract high roller clients, then doesn't that set us up for another 1987-style flash crash when all the automated margin calls try to liquidate at once? The incentive for brokers is still to liquidate right before the circuit breakers flip. According to FINRA, the use of margin is rocketing skyward:
https://www.finra.org/investors/learn-to-invest/advanced-investing/margin-statistics3) What does the average retail investor do with a $500,000 credit line at 1.25%? Go 100% VTI? Go 100% GME? I know what I would do, which is probably very different than the average investor: I'd set up options-hedged positions with small possible losses and small possible gains, making forced liquidation impossible. But the overall risk picture has a lot more to do with how the
average retail investor uses their margin. I found this survey from 2020 which suggests margin accounts would be using leverage to go long equities and attempt to time the market.
https://theharrispoll.com/portfolio-strategy-shifts-during-covid-19/4) How much of the massive 25% stock price runup in 2021
so far was the result of margin demand? If lots of investors are adding lots of margin as the FINRA stats suggest, that creates new demand for shares. How much can share prices fall if all these leveraged investors suddenly see something that makes them go risk-off?