Bank of America has issued a stark warning that a further 3 per cent decline in the S&P 500 could unleash a wave of systematic selling, potentially deepening the current market rout. In a note to clients, the bank's strategists estimated that such a move would force computer-driven trading algorithms to offload large positions, adding significant downward pressure on US equities.
The S&P 500 has already fallen roughly 8 per cent from its all-time high in February, closing at 5,582 points on Wednesday. The index is under pressure from persistent inflation concerns, uncertainty over Federal Reserve interest rate policy, and renewed trade tensions. A drop to around 5,415 points would, according to BofA, trigger the next wave of automated selling.
For UK investors, the warning is particularly pertinent. Many British pension funds and retail investment portfolios hold substantial allocations to US equities, often through tracker funds. A sharp sell-off in the S&P 500 would directly reduce the value of these holdings, compounding losses already felt from recent UK market weakness. The FTSE 100, which has a heavy weighting of international earners, has also been buffeted by the same global headwinds.
Analysts at BofA noted that systematic strategies, including volatility-targeting funds and commodity trading advisers, have already been reducing risk. 'If the S&P 500 falls another 3 per cent, we estimate these programmes could liquidate an additional $50bn to $80bn of equities,' the note said. This mechanical selling could create a feedback loop, driving prices lower and triggering further forced sales.
The warning underscores the fragility of current market conditions. While some investors see the pullback as a buying opportunity, the risk of a disorderly sell-off remains elevated. Market participants are now watching for any signs of stabilisation, but the path ahead looks uncertain as long as algorithmic selling looms.
Source: Bank of America