@roboquant: High frequency trading firms make $500,000/day by being 300 microseconds faster than you. They co-locate servers inside exchanges, run fiber cables that shave microseconds, and see your order before it's public. You can't win on speed. But you can win on time horizon. HFT holds positions for microseconds. Think in months. That's your edge. #HFT #HighFrequencyTrading #AlgoTrading #FlashBoys #MarketStructure