AIamond
Verdict: Not distinguishable from chance

How Often Is CNBC Right?

CNBC: 38.6% hit rate over 3,868 checks, against 36.9% by chance for the same calls in the same markets. Verdict: Not distinguishable from chance.

38.6 %

Hit rate

36.9 %

Chance

+1.7 pts

Vs. chance

3,868

Checked reports

The record by horizon

The interval is the range the edge would most likely fall in if the measurement were repeated (95 %). The verdict already corrects for testing many sources at once (Holm correction): one interval missing zero does not by itself make that source distinguishable from chance.

HorizonChecked reportsDaysHit rateChanceVs. chance (95 % interval)Detectable fromVerdict
All horizons3,86821738.7%36.9%+1.7 pts(−1.1 to +4.6)±4.0 ptsNot distinguishable from chance
1 d1,30521739.2%36.4%+2.8 pts(−0.3 to +5.9)±4.5 ptsNot distinguishable from chance
3 d1,29121438.7%37.6%+1.2 pts(−2.2 to +4.5)±4.8 ptsNot distinguishable from chance
7 d1,27221138.1%36.7%+1.3 pts(−2.0 to +4.6)±4.7 ptsNot distinguishable from chance

Method source-record-v2, registered and never edited. Read the method. Are you a named source and think a number is wrong, or want to reply? Write to info@aiamond.com; corrections are listed in the change log.

About CNBC

CNBC: Editorial news, English. AIamond has analysed 1,917 of its articles; they gave 3,868 checks from the first tradable price (each article is checked at up to three horizons).

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Frequently Asked Questions

How does AIamond measure source reliability?▼
AI classifies the tone of each article as up, down or sideways for the market it covers. From the first price a reader could trade after publication, we check the move after 1, 3 and 7 days. A raw hit rate mostly reflects which markets a source covers, so we compare it with chance for the same calls and outcomes within each market, give a 95 % interval (resampling whole days) and correct for testing many sources at once (Holm). The method is registered with its SHA-256 and never edited; a change is a new version, listed in the change log.
Can you rely on CNBC to call the market?▼
CNBC was right 38.6% of the time over 3,868 checks; chance for the same calls in the same markets is 36.9%. Verdict: Not distinguishable from chance. Across all sources we track, the tone of headlines has so far not called the next move better than chance – which is why AIamond shows the news picture, not forecasts.
How many news sources does AIamond track?▼
We read news sources whose rights record admits them: official feeds of publishers, no aggregators, press-release wires or user posts. The current list with every source's numbers is on this page.
How often is the reliability data updated?▼
Price checks run daily; the record on this page is recomputed once a day from the stored checks.

Our Methodology

AI classifies each article's tone as up, down or sideways for the market it covers. From the first price a reader could trade after publication we check the move after 1, 3 and 7 days. A source's hit rate is compared with chance for the same calls and outcomes within each market, so covering calm or busy markets earns nothing. Each difference comes with a 95 % interval; checks close in time are resampled together in blocks of 7 or 14 days, because they share market moves. A verdict needs at least 300 checks and must hold after correcting for the number of sources tested (Holm). This answers "did the market move that way?": a hit rate, not a return. AIamond makes no forecasts of its own.