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MFLX

Nasdaq ETF / ETP
First Trust Flexible Municipal High Income ETF
SEC Ticker Form: MFLX

Listing (Nasdaq Trader)

Symbol Directory: MFLX →
Listing ExchangeNasdaq (Q)
Market CategoryGlobal Market (G)
ETFYes
Round Lot Size100 shares
Financial StatusNormal (N)
Test IssueNo
Listing Since2026-09-20 05:30:00 UTC
SEC Ticker EquivalentMFLX

Regulatory Flags (Nasdaq Trader)

Symbol: MFLX

SEC Regulation SHO Threshold Security Days

Securities with persistent aggregate fail-to-deliver positions exceeding SEC Rule 203(c)(6) thresholds.

Days on List (Last 90 Trading Days)0 days
Total Historical Threshold Days71 days
First Seen on Threshold List2006-08-18
Most Recent Threshold Date2006-11-28

Rule 201 Short Sale Circuit Breakers Triggered

Alternative uptick rule (Rule 201) triggered by a ≥10% price decline from previous day's close (most recent first, up to 50 triggers).

Trade DateTrigger Time (ET)
2016-05-092016-05-06T09:30:01
2016-05-062016-05-06T09:30:01
2016-02-042016-02-03T10:19:49
2016-02-032016-02-03T10:19:49
2016-01-142016-01-13T09:30:00
2016-01-132016-01-13T09:30:00
2015-08-252015-08-24T09:33:32
2015-08-242015-08-24T09:33:32
2015-06-092015-06-08T11:43:08
2015-06-082015-06-08T11:43:08
2015-06-032015-06-02T09:30:00
2015-06-022015-06-02T09:30:00
2015-02-092015-02-06T09:30:00
2015-02-062015-02-06T09:30:00
2013-07-292013-07-26T09:30:02
2013-07-262013-07-26T09:30:02
2013-01-162013-01-15T09:30:00
2013-01-152013-01-15T09:30:00
2011-11-072011-11-04T09:30:00
2011-11-042011-11-04T09:30:00
2011-08-092011-08-09T06:35:22
2011-08-082011-08-08T15:42:44
2011-07-112011-07-11T06:22:44
2011-07-082011-07-08T09:30:00

Nasdaq Trader Listing Event History

1 event recorded
DateSourceEvent KindDescription
2026-09-20nasdaqtraded.txtFIRST_SEENInitial listing on Nasdaq (Global Market)

Nasdaq Trader daily captures since 2026-09-20