Rankings feel stable when you check them once a week. Check them every day and a different picture emerges. We tracked a cohort of 200 keywords daily for a month and counted how often the top organic result was different from the day before.
Published July 5, 2026 · cloro monitoring corpus · 200 keywords · 5,755 consecutive-day pairs
31.7%
of consecutive days saw the #1 result change
1,826
#1-position changes across 5,755 day-pairs
200
keywords tracked daily for 30 days
Across the cohort, the top organic result changed on 31.7% of consecutive days: 1,826 changes over 5,755 day-pairs. Roughly one day in three, the result sitting at position #1 for a tracked keyword is not the one that was there yesterday. A position from last week's check has had a one-in-three chance of turning over every night since.
And the churn is wildly uneven. The calmest keywords barely moved all month, while the most turbulent one cycled through 16 different #1 domains and changed on 93% of days. A single "average volatility" number hides that spread, which is exactly why per-keyword history matters more than a portfolio average.
One alert threshold set off the cohort average fires most days on the 93% keyword and reads a real takeover on a calm one as ordinary movement, so thresholds belong per keyword.
If a third of your money keywords can change their top result overnight, a weekly rank check misses most of the movement and a monthly one is noise. Daily is the floor for anything commercial, and on the most volatile terms even a daily reading is a sample, not the position.
It also reframes what a ranking "drop" is. On a high-volatility keyword, a single-day dip is often just churn, not a trend; on a stable keyword, the same one-position move is a real signal. Reading movement correctly means knowing each keyword's baseline volatility, which is what tells you whether today's move is worth acting on.
A cohort of 200 keywords with at least 20 days of coverage in a 30-day window was drawn from cloro's monitoring corpus (5,755 consecutive-day pairs). For each pair we compared the top organic domain day-over-day; a "change" is any day whose #1 domain differs from the prior day's. The cohort is customer-monitored queries (conversational, branded, multilingual), so read the figure as directional daily #1-position churn rather than a universal constant across all of Google.
cloro. (July 5, 2026). Rank Volatility: How Often the #1 Google Result Actually Changes. cloro Research. https://cloro.dev/research/rank-volatility/
More studies from cloro's monitoring corpus are in the research index.
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