Market Manipulation. Search

SEC v. New York Stock Exchange LLC, NYSE American LLC and NYSE Arca, Inc. (2018)

Settled

Checked against the primary document on October 3, 2026. The library's summary, tags and figures for this record were compared with the regulator's own document by an AI model (Claude) following written instructions, with sampled and disputed records read a second time. No lawyer has reviewed them. A checked record can still contain errors, and checked does not mean endorsed. See how we check records or report a correction.

Report an error in this record (sec-new-york-stock-exchange-llc-2018) by email

In March 2018 the SEC settled with three NYSE exchanges over several episodes in which they operated without effective rules or outside their rules, including a 2015 shutdown during which quotes were wrongly marked as automated, agreeing to pay a joint $14 million penalty. The case does not concern a benchmark.

The record

Structured fields for this action, as recorded in our case library.
Agency SEC
Release number 3-18388
Date filed 2018-03-06
Date resolved 2018-03-06
Status settled
Asset class equities
Venue NYSE, Nasdaq
Criminal parallel No
Defendants New York Stock Exchange LLC (entity) ; NYSE American LLC (entity) ; NYSE Arca, Inc. (entity)
Also named elsewhere New York Stock Exchange LLC is named in 1 other matter ; NYSE Arca, Inc. is named in 1 other matter
Cited as charged or alleged Securities Act s.17(a) (statutes and rules cited in the document; not a finding that they were violated)
Techniques

What was ordered

Civil penalty
$14m
Disgorgement
—
Prejudgment interest
—
Total relief
$14m
Alleged gain
—

A dash means the release did not state a figure we could extract, not that the figure is zero. Penalty and disgorgement are stored separately so aggregates across the library do not double-count the same dollars.

What is alleged to have happened

The Securities and Exchange Commission instituted and settled this proceeding on March 6, 2018 (Securities Act release 10463), without admission or denial by the exchanges.

The order finds that NYSE and NYSE American disseminated quotations marked automated during connectivity failures before a three-and-a-half hour shutdown on July 8, 2015, which were negligent misrepresentations under Section 17(a)(2) of the Securities Act. It also finds that Arca applied price collars to reopening auctions without a rule providing for them during the August 24, 2015 volatility, and that Arca erroneously implemented a market-wide halt on March 31, 2015. These are exchange rule and compliance failures, not rate rigging.

The record carried a benchmark-submission tag that nothing in the order supports, so it now has none. The respondents were ordered to pay a joint and several civil money penalty of $14 million within 14 days; the record had shown no amount.

For the regulator's own account of the facts, read the primary document linked above. This page deliberately summarises the structured record rather than reproducing the release.

Timeline

  1. 2018-03-06 Administrative proceeding instituted (cease-and-desist)

Primary documents

Everything on this page derives from the documents below. Where our summary and the primary document disagree, the primary document is right.

The linked release is a work of the United States government and is not subject to copyright. Our summary and narrative above are our own writing.

Record added September 10, 2026. submit a correction.