Data sources

Method

• RSI (14-day): average gain ÷ (average gain + average loss) × 100 over 14 trading days, with Wilder's smoothing (the usual formula).
• Moving averages: the average close over the last 50 and 200 trading days. The gap shows how far the price is above or below the 200-day line.
• MACD: the 12-day minus the 26-day exponential moving average; the signal line is its 9-day exponential average. MACD crossing above the signal is a buy signal, below is a sell signal.
• Calls: RSI 30 or below is oversold; RSI 75 or above, or a price 1.3 times the 200-day line or more, is overheated; anything else is normal. Close means RSI 30–35, or RSI 70–75 or 1.25–1.3 times the 200-day line. The thresholds are the usual ones, fixed before the test, not tuned to look good in it.
• Prices: closing prices, adjusted for splits but not dividends (as on an ordinary chart). Japanese stocks from Tokyo, others from their home listing, each in its own currency. The test used prices including dividends.

Updates

Prices are refetched and the site rebuilt at 08:30 Japan time each morning: the previous trading day for Japanese stocks, the previous night for US stocks. The test on the Evidence page is rerun by hand when the thresholds or groups are reviewed.

Operator

• Operator: After Deal operator (an individual)
• No connection with any organisation, including the operator's employer, and none of its work product or data is used.
• Nothing on this site is investment advice or a recommendation to buy or sell. Data belongs to each publisher and may contain errors or delays.

Corrections and questions: contact form / About After Deal