Terrestrial Energy Inc. (IMSR) Total Return Calculator with Dividends Reinvested

Terrestrial Energy Inc.

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The total return for Terrestrial Energy Inc. (IMSR) stock is -66.68% over the past 12 months. So far it's up 15.77% this year. The 5-year total return is -66.68%, meaning $10,000 invested in IMSR stock 5 years ago would be worth $3,332 today. Total return includes price appreciation plus reinvesting any dividends paid out.

If you invested $10,000 in IMSR 1 year ago, it would be worth $3,332 today — you'd have lost $6,668.

With Dividends Reinvested$3,332-66.68%

Price Only (No DRIP)$3,332-66.68%

Period2025-10-20 → 2026-06-15

Price

Total Return (DRIP)

S&P 500

If You Invested $10,000 in IMSR

1Y$3,332-$6,668 (-66.7%)-66.7% CAGR

3Y$3,332-$6,668 (-66.7%)-30.7% CAGR

5Y$3,332-$6,668 (-66.7%)-19.7% CAGR

10Y$3,332-$6,668 (-66.7%)-10.4% CAGR

15Y$3,332-$6,668 (-66.7%)-7.1% CAGR

20Y$3,332-$6,668 (-66.7%)-5.3% CAGR

30Y$3,332-$6,668 (-66.7%)-3.6% CAGR

Terrestrial Energy Inc. did not pay dividends during this period. Total return = price return.

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As of 2026-06-16

Returns at a Glance

Period	Total Return	CAGR	Price Only	Div. Contrib.	$10K →
YTD	+15.77%	—	+15.77%	—	$11,577
1Y	-66.68%	-66.68%	-66.68%	—	$3,332
3Y	-66.68%	-30.67%	-66.68%	—	$3,332
5Y	-66.68%	-19.73%	-66.68%	—	$3,332
10Y	-66.68%	-10.41%	-66.68%	—	$3,332
15Y	-66.68%	-7.07%	-66.68%	—	$3,332
20Y	-66.68%	-5.35%	-66.68%	—	$3,332
30Y	-66.68%	-3.60%	-66.68%	—	$3,332

Risk & Highlights

Best Year-73.07%2025

Max Drawdown-75.63%2025-10-20 → 2026-03-30

Annual Returns

Year	Total Return	Price Return	Div.	S&P 500	vs S&P
2026YTD	+5.67%	+5.67%	—	+0.41%	+5.3pp
2025	-73.07%	-73.07%	—	+16.64%	-89.7pp

IMSR underperformed the S&P 500 by 91.93pp over the past year (-66.68% vs +25.25%).

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IMSR Peers' Total Return

Accurate peer set · 10 comparable names

Name	Mkt Cap	30D Rtn	YTD Total Rtn	1Y Total Rtn	Div Contrib	3Y Total Rtn	5Y Total Rtn	10Y Total Rtn
IMSRTerrestrial Energy Inc.	$625M	+3.6%	+15.8%	-66.7%	—	-66.7%	-66.7%	-66.7%
NNENano Nuclear Energy Inc	$1.0B	+0.6%	-9.2%	-27.6%	—	+383.2%	+383.2%	+383.2%
OKLOOklo Inc.	$10.6B	-2.4%	-21.9%	-7.2%	—	+309.6%	+309.6%	+309.6%
SMRNuScale Power Corporation	$1.4B	-5.2%	-34.7%	-74.9%	—	+31.3%	+6.5%	+7.0%
BWXTBWX Technologies, Inc.	$17.8B	-5.3%	+6.9%	+39.6%	+0.7pp	+190.7%	+212.1%	+474.2%
UUUUEnergy Fuels Inc.	$3.9B	-15.0%	-6.2%	+169.7%	—	+141.7%	+137.0%	+508.6%
GEVGE Vernova Inc.	$263.1B	-6.7%	+44.2%	+101.0%	+0.3pp	+647.5%	+647.5%	+647.5%
LEUCentrus Energy Corp.	$3.3B	-3.3%	-35.2%	+4.0%	—	+401.0%	+562.1%	+5020.3%
LTBRLightbridge Corporation	$258M	-12.8%	-29.3%	-25.8%	—	+95.1%	+59.5%	-60.4%
CCJCameco Corporation	$46.6B	-0.5%	+8.6%	+54.5%	+0.2pp	+239.4%	+432.9%	+863.4%
UECUranium Energy Corp.	$5.8B	-13.9%	-10.1%	+76.6%	—	+262.5%	+285.0%	+1054.9%

Compare:IMSR vs NNE IMSR vs OKLO IMSR vs SMR IMSR vs NNE vs OKLO

About IMSR Dividend Returns

Terrestrial Energy Inc. (IMSR) does not currently pay dividends. Many growth-focused companies reinvest profits back into the business rather than distributing them as dividends.

How We Calculate Total Return

Our total return calculator simulates dividend reinvestment (DRIP) by assuming each dividend payment is used to purchase additional shares at the closing price on the ex-dividend date. This methodology provides an accurate representation of how a dividend reinvestment plan would perform.

Frequently Asked Questions

Q1What is the total return of IMSR over the past year?

Terrestrial Energy Inc. (IMSR) delivered a return of -66.68% over the past year. Since IMSR does not currently pay dividends, the total return equals the price-only return.

Q2How much would $10,000 invested in IMSR be worth today?

A $10,000 investment in Terrestrial Energy Inc. one year ago would be worth $3,332 today, representing a loss of $6,668.

Q3Does IMSR pay dividends?

Terrestrial Energy Inc. (IMSR) does not currently pay dividends. Many growth-focused companies reinvest profits back into the business rather than distributing them as dividends. For IMSR, the total return equals the price-only return.

Q4Did IMSR beat the S&P 500?

No, Terrestrial Energy Inc. (IMSR) underperformed the S&P 500 by 91.93 percentage points over the past year. IMSR delivered a total return of -66.68%, compared to the S&P 500's 25.25%. This means a passive S&P 500 index fund outperformed IMSR by 91.93pp during this period.

Q5What is IMSR's worst drawdown?

Terrestrial Energy Inc. (IMSR) experienced a maximum drawdown of -75.63% over the past year, declining from its peak on 2025-10-20 to its trough on 2026-03-30. The stock has not yet fully recovered to its prior peak. Maximum drawdown measures the worst peak-to-trough decline and is an important risk metric for investors.

Q6What is IMSR's long-term total return over 10, 20, or 30 years?

Here are Terrestrial Energy Inc. (IMSR)'s long-term returns with dividends reinvested. Over 10 years, the total return is -66.7% (-10.4% CAGR) — $10,000 would have grown to $3,332. Over 20 years: -66.7% total return (-5.3% CAGR) — $10,000 → $3,332. Over 30 years: -66.7% total return (-3.6% CAGR) — $10,000 → $3,332. Long-term investors benefit from compounding: dividends buy additional shares, which generate their own dividends, creating an exponential growth effect.

How much would $100/month in IMSR be worth today?

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