digital signal processing, applied to financial time series
Digital signal processing · financial time series

Find the rhythm
in the markets.

Every market is a mix of waves. Next Turn separates them, measures which ones stand out from the noise, and shows where each one is in its cycle — and where its next turn would fall if the rhythm holds.

Updated every night
S&P 500 (SPY)
120 & 78 trading days · ≈ 175 & 113 calendar days
next turnWed 30 Dec 2026projected peak · 37 trading days away · ±9 trading days
phase
5% to the next peak
Open the full S&P 500 (SPY) chart data to 5 Nov
What it does

Three questions, answered with signal processing

Not a black box: a measurement of the rhythm already inside the data, with its limits stated plainly.

Which cycles are in it?

Our analysis splits the series into waves of every length, from its daily data.

The maths

Are they real, or noise?

Each cycle's strength is measured against what noise alone would produce. Faded cycles are dropped.

Signal vs noise

Where are we in the cycle?

Phase shows how far each wave has travelled from its last turn toward the next one.

Phase, explained
Free, no sign-up

Five markets, open to everyone

The index, gold, the most-watched stock, our own realised volatility built from SPY's daily bars (not the VIX), and one pair: gold priced in silver.

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Every market's next turn, in one place

See which markets are projected to turn soon, which ones turn together, and how each one's cycles compare with its seasonal pattern — across all 113 US-listed markets we cover, updated every night.

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113
markets
15 indices and regions, 17 sectors, 20 large caps, 10 commodities, 6 bond funds, 4 currencies, 5 cyclicals, 3 crypto-linked stocks, all through the US-listed shares and ETFs that track them
15
realised volatility markets
one for each index and region, built from those ETFs' daily prices — not the VIX
6
baskets
US stocks, energy, gold miners, uranium, base metals, agriculture
12
pairs
one market priced in another: gold vs S&P, stocks vs bonds, semis vs S&P, bitcoin vs gold and more

See the rhythm for yourself

Open S&P 500, Gold, Nvidia, S&P 500 realised volatility or Gold vs silver — free, right now.

Open the charts
Signal processing, not advice. This site applies signal processing to financial time series and projects possible future turning points. It does not trade and gives no trading signals. Past turns are located with hindsight, using data that came after them, which is impossible in real time. Projected turns are extrapolation, not prediction. Nothing on this site is investment advice. We accept no responsibility for any loss arising from the use of this site. Full disclaimer and risk disclosure