Probably old news now, but entertaining read.
https://finance.yahoo.com/news/oil-trader-owes-9-million-210000529.html
https://finance.yahoo.com/news/oil-trader-owes-9-million-210000529.html
So the Day trader Shah still lost his whole $77k in his account correct? Regardless of the software error when it went negative he still lost his whole $77k.
No, IBKR compensates the difference from 0.00 to settlement price - 37.63, as he was locked into his position below 0.01.
According to my calculation he will thus only lose around 4k.
Based on the part of the article below he lost at least close to 30K but more likely nearly all of his balance based on the way he was trading.
Trade 1: long 5 lot at 3.30 = -16,650
Trade 2: long 21 between 3.30 and 0.50.
Guesstimate an average of 1.50 = -31,500
Trade 3: long 212 at 0.01 = -2,120
Based on those figures he lost around 50k when you add fees in, but I am willing to be he bought 212 at 0.01 because he was going all in with his last 6,xxx of equity.
"The day trader in Mississauga, Canada, bought his first five contracts for $3.30 each at 1:19 p.m. on that eventful Monday. Over the next 40 minutes or so he bought 21 more, the last for 50 cents. He tried to put an order in for a negative price, but the Interactive Brokers system rejected it, so he became more convinced that it wasn’t possible for oil to go below zero. At 2:11 p.m., he placed that dream-turned-nightmare trade at a penny."
IB bailed him out with their funds. I have deep respect for IB. I'd never expect that from another firm. They are men of honor in my opinion. Greatness is hard to find these days.