Morning Brief: Wednesday Waxing Gibbous in Aquarius Map Tests $85,842 BTC, $89.86 WTI, SPCX, and STRC Yield into flash PMIs

Chapter XVII says that some stocks follow the general market while others move against it for extended periods. Gann uses an individual-stock comparison to argue that a broad average cannot substitute for studying the security itself. The useful mechanism is cross-sectional disagreement: one market label can hide different component paths. A modern editorial translation uses matched-period returns rather than comparing raw dollar changes. In an explicitly synthetic example, a benchmark moves from 100 to 95 while a stock moves from 50 to 52. The benchmark loses 5 percent; the stock gains 4 percent. The stock therefore leads by 9 percentage points and also has a positive absolute return. Now change the stock's ending price to 49. Its return is negative 2 percent, but it still leads the benchmark by 3 percentage points. Relative strength no longer means that a long holder made money. Record both columns, using the same start and end sessions and a consistent treatment of splits and distributions. This keeps the benchmark from dictating the individual trend, while also keeping the word outperform from hiding an absolute loss. Neither comparison alone supplies an entry rule.

Try it

Synthetic benchmark: 100 to 95. Synthetic stock: 50 to 49 over the same period. Compute each return and the stock-minus-benchmark difference. Did the stock gain money?

Limits

Matched-period return differences are an editorial operationalization, not Gann’s exact formula. Relative strength can reverse and does not establish persistent alpha, causation, or a profitable entry.

Source

W. D. Gann, Truth of the Stock Tape (1923), Book III, Chapter XVII, General Trend of the Market, printed pp. 90-92. Primary source: Internet Archive scan of the original printed book; passage cross-checked against archived OCR and local Gann Study Group transcription. Synthetic examples and modern calculations are editorial, not historical Gann trades.

Today

From 2026-09-14 to latest completed session 2026-09-21, AAPL returned +1.77% (positive) while SPY returned +1.91% (positive); AAPL minus SPY was -0.14 percentage points, excluding distributions. AAPL split-adjusted close versus SPY split-adjusted close, Latest session 2026-09-21T20:00:00Z: 100*(AAPL_end/AAPL_start-1) - 100*(SPY_end/SPY_start-1) = -0.139694 percentage points of AAPL return minus SPY return over five trading intervals (inputs: aapl_end_adjclose_usd=338.98, aapl_return_pct=1.771354, aapl_start_adjclose_usd=333.08, spy_end_adjclose_usd=773.5, spy_return_pct=1.911048, spy_start_adjclose_usd=758.9952). Data source 1 Data source 2

Horizons defines azimuth and elevation from the observer's local horizon system. Azimuth is measured around the horizon from north; elevation is measured above or below the plane perpendicular to the local zenith. Those coordinates change when the observing site changes, even if the target and timestamp do not. That makes them a different tool from ecliptic longitude. A geocentric zodiac position supports sign, degree, and aspect language. A topocentric azimuth/elevation row answers a visibility question: where is the body in this observer's sky right now? Mixing the two creates false precision. Saying that Venus is at a certain zodiac degree does not tell a New York observer whether it is above the horizon, near the meridian, or lost below the skyline. A practical market note should name the frame before making a timing comparison. If an observation is paired with a price snapshot, record timestamp, site, target, and coordinate system in the same row. The point is synchronization and classification, not a claim that one local sky angle moves price.

Try it

At one timestamp, observer A records elevation +12.4° and observer B records -3.1°. Which observer has the target above the mathematical horizon, and by how many degrees?

Limits

The exercise uses supplied values and ignores terrain, weather, refraction, and market venue clocks. Local-frame visibility is an observing classification, not a directional trading signal.

Source

NASA/JPL, Horizons System manual, General Definitions, AZ and EL coordinate definitions. Primary NASA/JPL technical documentation; calculated astronomy and observing geometry, not historical astrological doctrine.

Today

At New York site coordinates 40.7128N, 74.0060W, the Moon elevation was -40.52° and azimuth 285.71° while BTC-USD was $85,844.01; elevation minus the mathematical horizon is -40.52°. Moon topocentric azimuth/elevation from New York plus BTC-USD spot, As of 2026-09-23T11:03:41Z: elevation_minus_horizon = moon_elevation_degrees - 0 = -40.517116 degrees above mathematical horizon (inputs: btc_usd=85844.01, horizon_degrees=0.0, moon_azimuth_degrees=285.709135, moon_elevation_degrees=-40.517116, site_latitude_degrees=40.7128, site_longitude_degrees=-74.006). Data source 1 Data source 2