MOVER · WED SEP 16 2026

Why GNRC rose 20.1% on Sep 16 2026: amazon supply agreement

GNRC+20.1%on Wed Sep 16 2026

GENERAC HOLDINGS INC was up 20.1% on the day at $210.13, ranked #2 on 44.4× its usual five-minute volume, when TapeRank recorded this spike at 16:29 ET during after hours.

THE DAY ON THE LIST · 1 EVENT

  1. 16:29 ET
    MOVER · AFTER-HOURS

    $210.13 · ▲ 20.1% ON THE DAY · 44.4× 5M RVOL · RANK #2

    JUSTIFIEDCONFIDENCE5/5

    GNRC rose 10.6% on the day and accelerated 9.75% in five minutes after announcing a long-term Amazon supply agreement with expected initial deliveries totaling $2.4 billion in 2027 and 2028. The warrant creates potential dilution, but the disclosed customer commitment and revenue scale provide a concrete fundamental basis for the move.

    WHYA 10.6% move, including a sharp late-session acceleration, is substantial but broadly proportionate to a multibillion-dollar Amazon contract, while the warrant adds dilution risk.
    ANALYZED 16:26 ET · 3 MIN AGO · OPENAI/GPT-5.6-LUNA
    THE ROW AND SESSION LEVELS AT 16:29 ET
    LAST210.13
    DAY▲ 20.1%
    5 MIN▲ 19.14%
    5M RVOL44.4×
    5M $VOL$4.9M
    FLOAT*59.0M
    RANK#2
    SESSIONAFTER-HOURS
    VWAP176.85
    HOD209.31
    LOD173.25
    OR HIGH—
    OR LOW—
    PREV CLOSE175.03
    PM HIGH—
    PM LOW—
    GAP▲ 1.22%

    * FLOAT IS SHARES OUTSTANDING; TRUE FREE FLOAT IS NOT AVAILABLE

    — MEANS THE LEVEL DID NOT EXIST YET AT THAT INSTANT, NOT ZERO

THE SESSION

  • 09:30 ETOpened at $177.16, +1.2% on the previous close of $175.03
  • 11:47 ETRegular-session high, $179.51
  • 15:25 ETRegular-session low, $173.25
  • 15:59 ETLast trade of the regular session, $175.11, +0.1% on the previous close of $175.03
  • Volume: 518K shares in regular hours, 922 before the open

GNRC opened at $177.16, climbed to an intraday high of $179.51, then reversed to a $173.25 low before finishing at $175.11, near its previous close of $175.03, with no halts. TapeRank’s read tied the move to an SEC 8-K describing a long-term Amazon supply agreement with expected initial deliveries totaling $2.4 billion in 2027 and 2028, while also disclosing an unregistered equity sale and warrant-related dilution risk; later, TapeRank recorded the stock at $210.13, up 20.1%, and judged the catalyst justified with 5/5 confidence.

WRITTEN THU OCT 15 2026 17:50 ET BY OPENAI/GPT-5.6-LUNA FROM THE FACTS ON THIS PAGE

FILINGS AND NEWS · 24H BEFORE THE MOVE

On the tape right now

WHERE THE LIST STOODWED NOV 4 2026 · 13:49 ETRECORDED LIVE · 742 QUALIFY

01
ECGSURGING 0:05
79.71
▼ 29.3%
▼ 1.41%
41.0×
FAD
$6.2M
51.1M*
STRETCHED
02
CAVASURGING 0:00
64.78
▲ 7.4%
▲ 1.30%
9.3×
ORBHODVWH
$11.6M
116.8M*
UNEXPLAINED
03
URGNSURGING 0:00
29.16
▼ 15.2%
▼ 1.29%
15.6×
FAD
$1.4M
48.9M*
JUSTIFIED
04
MPTISURGING 0:00
64.15
▼ 1.5%
▲ 0.96%
23.8×
VWH
$637K
4.3M*
UNEXPLAINED
05
LSPDSURGING 0:00
11.52
▲ 4.9%
▼ 1.24%
16.5×
ORB
$426K
133.3M*
UNEXPLAINED
06
CRCTSURGING 0:00
8.90
▲ 49.2%
▼ 0.72%
15.1×
GAPORBVWHEXT
$395K
54.7M*
STRETCHED
07
BROSSURGING 0:00
43.97
▲ 0.9%
▼ 0.91%
4.0×
FAD
$4.3M
137.9M*
UNEXPLAINED
08
LMRICOOLING 1:35
12.85
▲ 14.5%
▲ 1.06%
132×
ORBHODVWH
$1.7M
—
UNEXPLAINED
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