Stock listing

TSX:GRID Tantalus Systems Holding Inc Stock

Home listing (TSX) of Tantalus Systems Holding Inc

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Share price · TSX:GRID

$4.20 CAD -0.31 (-6.9%)

Close on Oct 30, 2026

Past year +1.7% · daily closes, Oct 30, 2025 – Oct 30, 2026, adjusted for splits
Day range
$4.15 – $4.52 CADOct 30, 2026
Volume
94,583 sharesOct 30, 2026
Market cap
$239.3M CADAt the close on Oct 30, 2026 · price × 56.97M shares outstanding
52-week range
$3.51 – $6.64 CADLowest and highest trades, Oct 31, 2025 – Oct 30, 2026
Traded on an average day
$728,595 CADMedian day 126,900 shares · last 3 months, Jul 30, 2026 – Oct 30, 2026
Tantalus Systems Holding Inc logo

Prices by listing

ListingLastChangeVolumeOpenHighLowPrevious closePrice from
TSX:GRID · Home$4.20 CAD-0.31 (-6.9%)94,583$4.52$4.52$4.15$4.51Close on Oct 30, 2026
OTC:TGMPF$3.03 USD+0.05 (+1.7%)200$3.03$3.03$3.03$2.98Close on Oct 27, 2026

Daily closes

Last 3 months, Jul 30, 2026 – Oct 30, 2026 · TSX:GRID · CAD, adjusted for splits

DayCloseChange%OpenHighLowVolume
$4.20-0.31-6.9%$4.52$4.52$4.1594,583
$4.51-0.02-0.4%$4.53$4.58$4.4782,977
$4.53+0.28+6.6%$4.32$4.55$4.31114,087
$4.25+0.04+1.0%$4.23$4.31$4.2360,510
$4.21+0.04+1.0%$4.20$4.26$4.1581,594
$4.17-0.09-2.1%$4.30$4.31$4.1573,424
$4.26-0.17-3.8%$4.43$4.43$4.1867,700
$4.43+0.18+4.2%$4.23$4.46$4.23100,100
$4.25+0.16+3.9%$4.09$4.34$4.0595,100
$4.09+0.04+1.0%$4.10$4.105$3.99102,500
$4.05-0.08-1.9%$4.17$4.25$4.00102,200
$4.13-0.06-1.4%$4.13$4.15$3.9792,400
$4.19-0.19-4.3%$4.40$4.40$4.12109,200
$4.38-0.23-5.0%$4.62$4.62$4.25167,300
$4.61+0.04+0.9%$4.57$4.70$4.5180,400
$4.57-0.09-1.9%$4.65$4.65$4.49148,700
$4.660.000.0%$4.64$4.67$4.57109,600
$4.66+0.01+0.2%$4.65$4.73$4.6070,200
$4.65-0.06-1.3%$4.76$4.87$4.6089,400
$4.71+0.21+4.7%$4.56$4.75$4.5664,000
$4.50-0.19-4.1%$4.72$4.72$4.47108,900
$4.69-0.03-0.6%$4.76$4.77$4.6896,000
$4.72+0.02+0.4%$4.74$4.89$4.68213,200
$4.70+0.20+4.4%$4.51$4.72$4.44251,700
$4.50+0.06+1.4%$4.50$4.72$4.48153,500
$4.44+0.12+2.8%$4.34$4.47$4.29156,800
$4.32+0.21+5.1%$4.12$4.32$4.05162,000
$4.11-0.12-2.8%$4.28$4.28$4.07110,200
$4.23+0.15+3.7%$4.12$4.35$4.10172,000
$4.08+0.05+1.2%$4.05$4.12$3.98792,700
$4.03+0.12+3.1%$3.87$4.08$3.87121,000
$3.91-0.01-0.3%$3.90$4.10$3.90106,600
$3.92-0.08-2.0%$3.86$4.11$3.86130,100
$4.00+0.15+3.9%$3.84$4.01$3.82167,100
$3.85+0.10+2.7%$3.79$3.93$3.7958,600
$3.75-0.11-2.8%$3.80$3.83$3.7358,700
$3.86+0.02+0.5%$3.80$3.94$3.7970,300
$3.84-0.08-2.0%$3.87$3.94$3.80236,000
$3.92+0.17+4.5%$3.72$4.04$3.72275,300
$3.750.000.0%$3.71$3.80$3.68600,300
$3.750.000.0%$3.75$3.78$3.70147,300
$3.75-0.11-2.8%$3.86$3.92$3.70152,100
$3.86+0.04+1.0%$3.80$3.96$3.74136,300
$3.82-0.14-3.5%$4.00$4.00$3.80156,700
$3.96-0.03-0.8%$3.98$4.02$3.95124,100
$3.990.000.0%$4.04$4.04$3.96373,400
$3.99+0.02+0.5%$4.01$4.08$3.95164,122
$3.97-0.11-2.7%$4.02$4.15$3.93147,198
$4.08+0.02+0.5%$4.06$4.17$4.02129,700
$4.06-0.14-3.3%$4.23$4.23$3.86234,800
$4.20-0.09-2.1%$4.26$4.27$4.18103,700
$4.29-0.07-1.6%$4.34$4.35$4.21196,600
$4.36-0.14-3.1%$4.47$4.51$4.3395,900
$4.50+0.09+2.0%$4.37$4.53$4.3580,400
$4.41+0.01+0.2%$4.40$4.56$4.38570,600
$4.40+0.04+0.9%$4.32$4.45$4.32179,000
$4.36+0.05+1.2%$4.33$4.52$4.31223,606
$4.31-0.01-0.2%$4.27$4.40$4.21254,405
$4.32+0.07+1.6%$4.34$4.50$4.245461,300
$4.25-0.65-13.3%$4.84$4.84$4.11659,900
$4.90-0.04-0.8%$4.87$4.96$4.82157,000
$4.94+0.29+6.2%$4.80$5.00$4.80143,500
$4.65-0.02-0.4%$4.65$4.70$4.59104,500
$4.67+0.09+2.0%$4.58$4.85$4.58101,700
Ticker
TSX:GRID
Asset type
Stock
Exchange
TSX
Currency
CAD

What changed lately

Calls

Upcoming

  • Tantalus Systems Holding (TSX:GRID) Q3 2026 Earnings Call

    Thu, Nov 12, 2026 · 10:00 AM ET

    Register

Replays

  • Tantalus Systems Holding (TSX:GRID) Q2 2026 Earnings Call

    Thu, Aug 06, 2026 · 10:00 AM ET

    Watch Transcript

  • Tantalus Systems Holding (TSX:GRID) Q1 2026 Earnings Call

    Thu, May 07, 2026 · 11:00 AM ET

    Watch Transcript

  • Tantalus Systems Holding (TSX:GRID) Q4 2025 Earnings Call

    Thu, Mar 19, 2026 · 11:00 AM ET

    Watch Transcript

Latest news

Tantalus to Report Third Quarter 2026 Financial Results on November 11, 2026

Oct 20, 2026

Closed $4.25 (+3.9%) on Oct 20, 2026

Tantalus Systems Added to Nasdaq OMX Clean Edge Smart Grid Infrastructure Index and First Trust Smart Grid Infrastructure ETF (GRID)

Sep 24, 2026

Closed $4.50 (+1.4%) on Sep 25, 2026

Tantalus Systems and Calix to Leverage Fiber Networks for AMI Deployments

Aug 27, 2026

Closed $3.96 (-0.8%) on Aug 27, 2026

Tantalus Systems Holding Inc. Delivers Record Revenue Results During Second Quarter 2026

Aug 5, 2026

Closed $4.25 (-13.3%) on Aug 6, 2026

Tantalus to Report Second Quarter 2026 Financial Results on August 5, 2026

Jul 16, 2026

Closed $4.55 (+0.4%) on Jul 17, 2026

Tantalus Systems Announces Debt Restructuring

Jun 30, 2026

Closed $5.45 (+3.0%) on Jun 30, 2026

Tantalus Announces New AI-Enabled Data Analytics Solutions to Help Utilities Accelerate Grid Modernization

May 12, 2026

Closed $5.97 (-3.7%) on May 12, 2026

Tantalus Systems Holding Inc. Reports First Quarter 2026 Financial Results

May 6, 2026

Closed $6.15 (-1.6%) on May 7, 2026

Tantalus Releases Its Fourth Annual Utility of the Future Survey

Apr 30, 2026

Closed $6.35 (+5.3%) on Apr 30, 2026

Tantalus to Report First Quarter 2026 Financial Results on May 6, 2026

Apr 8, 2026

Closed $5.05 (+1.6%) on Apr 8, 2026

All Tantalus Systems Holding Inc news

Decks

Tantalus Systems Holding Inc on 6ix

News releases
21 in the last 12 months · 141 in all · newest Oct 20, 2026 · oldest 2021
Calls
4 calls with a replay · 4 with a transcript · latest Aug 6, 2026
Decks
31 decks · latest October 2026

Where Tantalus Systems Holding Inc is listed

ListingExchangeCountryCurrency
TSX:GRID · Home listing · This pageTSXCanadaCAD
OTC:TGMPFOTCUnited StatesUSD
Cboe Canada:GRIDCboe CanadaCanadaCAD

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