Goldman Sachs reports that S&P 500 futures have reached another record high, with non-dealer net futures positioning also registering a new record. This significant build-up in positions indicates a strong bullish sentiment among traders. According to derivatives market updates on Oct 01, Foreign Institutional Investors (FIIs) continue to hold more than four long positions in index futures for every short bet, while proprietary trades hold five shorts for every bullish bet in index futures. Traders have built the largest position in S&P 500 futures in history.