Only threads I found were very old--can someone enlighten me how to calculate FX gains or losses with Interactive Brokers for U.S. tax reporting? This is for a portfolio that holds foreign stocks, either borrowing the currency or converting into it (with FX spot transactions back and forth)...
What prop firms would be a good fit for someone practicing what might broadly be referred to as event-driven arbitrage? (For purposes of discussion, you may suppose the strategy is merger arb.) In other words, my strategy requires holding large hedged positions for an intermediate fixed period...