Subscription
The indicator’s rules and complete record are public. Subscribers get each trading day’s reading as it is published, the oversold alert and any signal on the day it fires. The fee covers the infrastructure that computes and delivers all of it.
Annual subscription
USD 149 per year
Equivalent to USD 12.42 a month, billed annually.
- 30-day free trial; no charge if you cancel before it ends
- Daily reading and same-day signals for the S&P 500
- Cancel at any time; access runs to the end of the paid term
- Full refund within 14 days of a charge if no signal has been delivered since
Start the 30-day trial
Payment by Stripe
What subscribers receive
- Market brief
- The day’s regime classification along with its context — VIX, federal funds rate, unemployment and CPI — and the current alert and signal status. Provisional readings during the session, then the final reading after the close.
- Oversold alert
- A heads-up when a panic or bear market gets deeply oversold, which is the condition that comes before a signal.
- Signal
- Delivered to the portal on the day it fires. 28 signals since Aug 1998; several years have none.
- Signal terminal
- The S&P 500’s price history each session colored by its regime and every alert and signal marked on it, updated every trading day.
- Access
- The subscriber portal at app.doubletrends.com. Your checkout email is your account. You sign in with a link we email you, no password.
Getting started
From checkout to the first reading
Start the trial
Complete checkout with Stripe. Nothing is charged today; the first 30 days are free.
Sign in
Open the sign-in link sent to your checkout email. There’s no account to set up and no password to remember.
Read the brief
The market brief, signal terminal and account pages are there right away.
Terms
Trial, cancellation and refunds
- Free trial
- Thirty days. Cancel before it ends and you are never charged.
- Cancellation
- Stops renewal. If a paid term has begun, access continues until it ends.
- Refunds
- A full refund within 14 days of any charge, provided no signal has been delivered since that charge.
- Payment
- Processed by Stripe. Card numbers are never sent to or stored by us.
The Refund Policy and Terms of Service govern.
Questions
Common questions
- How often does it fire?
- Not often. 28 times since Aug 1998, about 9.1 per decade. Some years have a few signals and many have none at all.
- Is a signal a recommendation to buy?
- No. It describes market conditions. Some investors use it as a cue to revisit a planned contribution or a staged entry, others do nothing. It is not advice and does not consider your circumstances.
- Which markets are covered?
- The S&P 500 index. Most people hold it through funds like VOO, SPY or IVV. Coverage of the Nasdaq-100 is planned.
- How was the history produced?
- Readings not published on the day are a back-tested reconstruction. The methodology explains how, and the historical data page lists every signal.