Chris Sacca (legendary VC) exploited a similar bug in his early days. https://en.wikipedia.org/wiki/Chris_Sacca#Stocks_and_Fenwick_&_West https://en.wikipedia.

Chris Sacca (legendary VC) exploited a similar bug in his early days. https://en.wikipedia.org/wiki/Chris_Sacca#Stocks_and_Fenwick_&_West https://en.wikipedia.org/wiki/Chris_Sacca#Stocks_and_Fenwick... > Sacca used his student loans to start a company during law school, and when the venture proved unsuccessful he used the remaining funds to start trading on the stock market. By leveraging trades for significant amounts (discovering a flaw in the software of online trading brokers in 1998)[18] he managed to turn $10–20 thousand dollars into $12 million by 2000.[19] Eventually, when the market crashed, Sacca found himself in debt with a four million dollar negative balance.[18] He negotiated to have it reduced to $2.125 million[17] and had repaid it by February 2005.[18]