January 20, 2026

Based on Today's Move, What Historically Happened the Next Trading Day?

Daily Momentum is a CI Volatility forecasting tool that answers this question with real data — enter any ticker and see what happened historically the day after a move like today's.

The S&P 500 just dropped 1.2% today. You're sitting at your desk wondering: based on history, what tends to happen next? Does it keep falling? Does it bounce? How often does a move like this reverse the following day?

Most traders rely on gut instinct or social media sentiment to answer that question. Maybe you've seen someone tweet "oversold, bouncing tomorrow" or "this is just getting started." But none of that is backed by data.

Doing this by hand means pulling years of historical daily returns, filtering for days with a similar move, and calculating the stats yourself. Hours of work for a single lookup — and you'd still have to redo the whole thing the next afternoon.

The Daily Momentum Tool

Daily Momentum tool showing next-day forecast stats and distribution

Daily Momentum is one of CI Volatility's forecasting tools, and it does one thing exceptionally well: it tells you what historically happened the next trading day after a move like today's.

Pick any ticker. The tool automatically detects today's move, finds every historical day with a similar percentage change, and shows you exactly what happened the following session. Distribution charts, directional probabilities, average returns, and a complete log of every matching day.

What the Tool Shows You

A complete statistical picture of what happened next after similar moves.

Next Day

Up or Down?

After a move of this size, what percentage of the time did the stock go up the next day vs. down? Know the historical directional bias instantly.

Next Day

Average Return

What was the average next-day return after similar moves? See whether the historical tendency was to continue, reverse, or stay flat.

Distribution

Return Histogram

A full distribution chart showing where next-day returns clustered. See the range, the skew, and where the majority of outcomes landed.

Matching

Range or Custom

Match by range (any move between -1% and 0%) or enter a custom percentage with an adjustable tolerance window for precise lookups.

Filtering

VIX Regime Filter

Isolate results by volatility environment. Filter by VIX below 20, above 20, or above 30 to see how next-day behavior changes in different regimes.

Coverage

Preset Tickers + Custom Input

SPY, QQQ, IWM, AAPL, NVDA, TSLA, and PLTR built in, plus a More dropdown of AMD, AMZN, GLD, GOOGL, META, MSFT, NFLX, and SLV. Or type any custom ticker for instant analysis.

How It Works

The tool takes today's percentage move for any ticker and searches the entire historical record for days with a similar move. You control the matching criteria: use the range mode for broad buckets (like "any day between -1% and 0%") or custom mode with a tolerance window for precise lookups.

Once matched, the tool calculates next-day statistics across every historical occurrence:

Percentage of days that were up vs. down the next session
Average, median, and range of next-day returns
A histogram showing the full distribution of outcomes
Sample size so you know how much data is behind each result

The VIX regime filter lets you slice the data further. A -2% SPX day when VIX is at 15 tells a very different story than the same move when VIX is at 35.

How Traders Use It

Five ways members put Daily Momentum to work in their process.

End-of-day positioning

Before the close, check whether today's move historically led to continuation or reversal the next day.

Overnight holds

Decide whether to hold a position overnight based on the historical probability of a follow-through or a fade.

Volatility regime awareness

Use the VIX filter to understand how the same move plays out differently in calm vs. stressed markets.

Multi-ticker comparison

Compare next-day tendencies across indexes, mega-caps, and any custom ticker you type — same move, different instruments.

Strategy validation

Cross-reference your mean-reversion or momentum setups against the historical base rate for similar days.