How to tell if the market selloff has hit bottom

Anyone trying to make sense of the stock-market plunge by focusing on President Trump’s tariff yo-yo was left scratching their head at the start of this week. Shares in Tesla ( TSLA ), run by Trump’s chainsawer-in-chief Elon Musk , plummeted 15% on Monday to take them back below where they were before the election. Yet shares in General Motors ( GM ) and Ford, both much more exposed to tariffs on steel, Canada and Mexico than is Tesla, actually rose, bucking the wider selloff .

Tariffs were the wrong place to look for an explanation. Look deeper into the trading dynamics, and a picture forms of the broader market forces that sent stocks into correction territory this week.

How to tell if the market selloff has hit bottom

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The odd Tesla/Ford moves were more likely driven by what Wall Street types call capitulation. That’s when traders have thrown in the towel and are closing out bets they had been holding on to in the hope of a turnaround.

Blame the army of individual day traders who obsessively follow Tesla (GM and Ford are both regarded with scorn by this crowd). These speculators finally gave up as Tesla lost all its postelection gains.

The irony for those who abandoned Tesla is that the stock then leapt on Tuesday and Wednesday (and Ford fell, while GM went sideways), before resuming its slide on Thursday. Trump peddling Teslas in front of the White House provided a justification for some to try to buy the dip. Also at play: another technical move driven by hedge funds.

Tesla was the single biggest short position of hedge funds at the end of January, the latest data available, according to Goldman Sachs. ( GS ) Hedgies’ bet on Tesla’s share price falling had been extremely painful when the stock rocketed higher after the election. The drop back made them some profits (or perhaps merely reduced their losses). That made it easier to buy back the stock to close the trade.

All this matters when trying to decide if the market is done with its correction. Stocks tend to overshoot reality both on the way up and on the way down, as investors get overexcited or depressed. After the election they overshot upward wildly, far beyond what was justified. If they overshoot down, it will be time to buy.

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