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Strategy Defensive MomentumRiskSystematic

Why Our Momentum Framework Sits in Cash This Month

The regime filter triggered on 29 July. We publish the exact rule, the historical hit rate, and the cost of ignoring it.

S. IyerStrategist 02 Aug 2026 8 min read 14 pages
Executive summary

The regime filter on our Momentum Rotation framework triggered on 29 July and the strategy is fully in cash. We publish the exact rule, the historical frequency of the signal, and what ignoring it has cost in past instances.

Current exposure
0%
Triggered
29 Jul
Signals / yr
~2.4
Discretion
None

Key findings

  1. The rule is mechanical and public

    The framework exits to cash when the index closes below its long-term trend filter for a defined number of consecutive sessions. There is no discretion in the trigger.

  2. False positives are frequent and cheap

    The filter has produced more false signals than true ones. It earns its place because the cost asymmetry is heavily in its favour, not because it is accurate.

  3. The cost of overriding it is asymmetric

    In the sample, overriding the filter improved outcomes slightly in most instances and damaged them severely in a small minority — the classic shape of a risk control worth keeping.

Framework exposure over the past year Sample data
0295786115SONDJFMAMJJA

Percentage of capital deployed. Sample data.

The rule as written

The exit condition, the re-entry condition and the confirmation window are documented in full in the strategy specification. We reproduce them here rather than describing them, because a rule you cannot reproduce is not a rule.

No parameter in the filter has been changed since the framework was published. Where we have considered changes, the consideration is documented and dated.

Why this signal is uncomfortable

The filter has moved to cash while breadth remains reasonable and sentiment is constructive. That is the normal condition under which a trend filter triggers — if it only fired when the outcome was obvious, it would fire too late to matter.

Being in cash during a market that continues higher is the expected cost of this framework, and it is budgeted for in the drawdown allowance.

Re-entry conditions

The framework re-enters on a defined close above the trend filter with a confirmation window, not on discretionary judgement about whether the signal was a false alarm.

Subscribers receive the re-entry alert the same session the condition is met.

How to read this note. Views expressed are the analyst's own, formed from the evidence cited and the model attached. They are research, not personalised advice, and do not account for your circumstances, horizon or risk capacity. Investments in securities markets are subject to market risks. Read all related documents carefully before investing. Past performance is not indicative of future results.
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S. Iyer

Strategist · SkyGrowthWealth Research

Maintains the model behind this note and publishes every revision to it.

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