Two clocks for a Nasdaq put/call sleeve

Two clocks, one procedure

Editorial: portfolio construction is a two-clock problem. The sma200-mean is the slow clock, a 200-day simple average of the index put/call series treated as a slowly drifting climate rather than a fixed numerical threshold. The fast clock is a two-day-sma of the same put-call-ratio. A chosen buy-level around that mean decides whether the Nasdaq sleeve is on or off.

That framing lets entry, exit, and sitting out be written as one procedure. The archive workflow is a historical long-only sleeve. The two-clock reading is editorial.

What the put/call print measures

The put-call-ratio used here is daily index-option put volume divided by call volume. It is a traded-volume sentiment gauge, not a list of outstanding contracts.

Index put/call readings tend to center near 1.0, while equity put/call readings tend to center near 0.7. Hedging demand concentrates in index options, and single-stock issuance leans toward calls. The historical Nasdaq procedure follows the index series.

Write rules as distance from a moving mean

The index put/call series has two timescales. A several-day swing of about 20% to 30% sits on a slower drift of 10% to 20% or more over months and years.

Rules should be written as distance from a moving mean such as a 200-day average rather than as fixed absolute levels. The sma200-mean is that climate: it can wander, so a fixed numerical cutoff fights the slow clock.

One buy-level turns the sleeve on and off

The long-only Nasdaq procedure buys when a two-day-sma of the index put/call ratio is a chosen percentage above the sma200-mean and exits when that same two-day average is the same percentage below the mean.

The buy-level is that single distance. It opens a long Nasdaq position on excess pessimism and later closes it on excess optimism. The sleeve then stays long-only-or-flat: either long a Nasdaq-linked vehicle or out of the market.

The two-day-sma is only a short smoother. Its job is to keep one noisy print from flipping the sleeve.

Fill at the next open

The put/call print is released after the cash session. The tested procedure therefore uses next-open-execution: it opens and closes at the next day's open rather than on the close of the signal day.

Sweep one distance

System-optimization here is a one-parameter sweep of how far the smoothed put/call reading must sit from its long moving average before the sleeve turns on or off.

On daily Nasdaq tests from 8 January 2007 through 21 August 2020, with $10 slippage and commissions per trade, a single buy-level parameter was swept. The 1.03 to 1.12 band, and especially 1.08, was treated as the stable and preferred distance from the 200-day mean.

Budget the time the sleeve is invested

Across that stable band the tests typically produced about 15% to 20% compounded annual return, drawdowns near 25%, and market exposure around or below 50%. The sleeve was invested only about half the time.

That share of calendar time is the exposure-budget. When the sentiment switch is off, capital is free for other sleeves.

When the switch is on, hold the vehicle or rank names

The same sentiment switch can be used as a rank-rotation filter. Rank-rotation, as used here, is a long-only sleeve that is either fully invested in a Nasdaq-linked vehicle or cash, then optionally ranks a short list of Nasdaq names by momentum when the sentiment filter is on.

The momentum-filter places capital in a handful of Nasdaq names with the strongest recent momentum rather than only in the index vehicle. The archive reported that this ranking step improved the historical results. The same switch can sit on a liquid Nasdaq-100 vehicle instead of, or under, that short list.

How the three procedures fit together

Editorial: rank-rotation, system-optimization, and seasonal-trading combine as one testable sleeve. System-optimization chooses the buy-level that turns the sleeve on and off. Rank-rotation decides whether the on-state holds a Nasdaq vehicle or a short momentum list.

Seasonal-trading is a calendar overlay that withholds new entries in historically weak months so the same sentiment rules are not forced to trade through a known seasonal drag. The archive facts do not name those months. Treat the overlay as a teaching way to keep abstention inside the same procedure.

Keep the off-state flat

Replacing the flat state with a short book based on the same put/call extremes generally worsened historical results, so the procedure was left long-only. The historical workflow found no useful short counterpart from the same ratio.