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ADP — structural market context

Automatic Data Processing, Inc

Structural market context from public regulatory and market data, shown with its as-of dates. Descriptive only: nothing on this page is a recommendation, a prediction, or advice to buy or sell any security.

What changed

As of the close on Oct 21. Each line shows the earlier value, the later value and their dates.

Price

Close $294.50 (Oct 21) vs $292.75 (Oct 20): +0.60%.

Volume

1.22× its 20-session average (1.8M) on Oct 21.

Includes pre- and post-market trading.

Short interest

Short interest 11.0M shares (settlement Sep 30) vs 10.5M (Sep 15).

No new publication in this window. Latest: settlement Sep 30, published Oct 10.

Fails-to-deliver

Latest file (settlements Sep 15–Sep 30, published Oct 16): 1 day with fails, largest 100 shares on Sep 21.

Previous file (settlements Sep 1–Sep 14, published Sep 30): 2 days with fails, largest 2K shares on Sep 11.

No new publication in this window.

Insider filings (Form 4)

None recorded in this window.

ADP short interest & days to cover

SHARES SHORT
11.0M
% OF FLOAT
2.8%
DAYS TO COVER
4.4
CHANGE VS PRIOR
+4.2%

FINRA consolidated short interest, reported twice a month and published ~2 weeks after each settlement date. % of float uses reported free float. · as of 2026-09-30 (22d ago)

ADP fails-to-deliver (FTD)

Settlement dateFailed sharesPrice
2026-09-21 · 31d100$271.22
2026-09-11 · 41d2K$267.33
2026-09-08 · 44d374$277.62

SEC fails-to-deliver files, published twice a month with ~6 weeks of delay.

ADP insider buying and selling (Form 4)

Last 12 months, Form 4 codes P and S: 0 purchases · 20 sales

InsiderTypeSharesValueFiled
DeSilva Joseph · officer: Executive VPSale (S)631$178K2026-09-04
DeSilva Joseph · officer: Executive VPSale (S)7K$1.8M2026-09-03
D'Ambrosio Christopher · officer: Corp. VPSale (S)2K$530K2026-09-03
Black Maria · officer: President & CEOSale (S)214$60K2026-09-03
Black Maria · officer: President & CEOSale (S)256$72K2026-09-03

SEC Form 4 filings: purchases and sales reported on Form 4 (transaction codes P and S) only; grants and option exercises excluded. Attributed public records.

Frequently asked questions

What is ADP's short interest?
As of the FINRA settlement date 2026-09-30, ADP had 11.0M shares sold short — 2.8% of its float, with 4.4 days to cover at average volume. FINRA publishes this data roughly two weeks after each twice-monthly settlement, so it is inherently delayed. A short-interest figure describes an aggregate position; it does not predict what the stock will do.
Are insiders buying ADP?
In the last 12 months of SEC Form 4 filings, ADP recorded 0 insider purchases and 20 sales reported on Form 4 (transaction codes P and S; grants and option exercises excluded). These are attributed public records — information, not instruction.
Is this page telling me to buy or sell ADP?
No. Everything on this page is descriptive, structural market context from public data, shown with its as-of dates. TradeAI News does not issue directional recommendations, price predictions, or buy/sell advice — for any ticker.
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ADP: the full history

Latest rows shown. Full history, market-wide screens, cluster detection and the context journal live in the dashboard.

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Not financial advice. Trading involves risk. Descriptive structural context, never a recommendation.