October 10, 2025: SPY's China tariff selloff, replayed

SPY was quiet in the morning, then sold off hard on a tariff threat and closed near the low. Watch it, then trade it from the open.

Prior close

$671.19

Open

$672.15

Gap

+0.1%

High

$673.95 at 9:45 AM

Low

$652.87 at 3:55 PM

Last 5-minute close

$653.28

Change

-2.7%

Range

3.1%

From the replay's 5-minute bars, regular session only. Prior close is the last 5-minute bar of the session before.

SPY opened at $672.15, +0.1% from the prior session. The high of the day came on the 9:45 AM bar at $673.95, and the low on the 3:55 PM bar at $652.87. The last 5-minute bar closed at $653.28, -2.7% from the prior close, with a range of 3.1% in one session.

Trump posted that he was considering a massive increase in tariffs on Chinese imports, and stocks that had been heading for a small gain turned lower (AP, via Boston.com).

Could you have traded it?

Play the day from the open in Market Replay with the rest of the chart hidden, and trade it the way you normally would. These are the questions I'd want an answer to by the close:

In the quiet morning, were you trading it or waiting?
When the first big red bars came, did you short, buy the dip, or step aside?
Long from the morning: where was your stop?
Did you cover a short into the close or hold for more?

Watching the replay needs no account. To trade the day yourself it has to be inside your plan's history: Free replays the last 30 weekdays, Trader the last 365 weekdays, and Quant every day since March 28, 2023.