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NB Bancorp, Inc. Common Stock (NBBK) Total Return Calculator with Dividends Reinvested

NB Bancorp, Inc. Common Stock

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The total return for NB Bancorp, Inc. Common Stock (NBBK) stock is +18.40% over the past 12 months. So far it's up 4.83% this year. The 5-year total return is +49.69%, meaning $10,000 invested in NBBK stock 5 years ago would be worth $14,969 today. Total return includes price appreciation plus reinvesting any dividends paid out.

If you invested $10,000 in NBBK 1 year ago, it would be worth $11,629 today — you'd have gained $1,629 with dividends reinvested.

With Dividends Reinvested$11,629+16.29%

Price Only (No DRIP)$11,462+14.62%

Dividend Boost+$1674 payments · +1.67% extra

Period2025-05-08 → 2026-05-07

Price

Total Return (DRIP)

Dividends

S&P 500

If You Invested $10,000 in NBBK

1Y$11,840+$1,840 (+18.4%)18.4% CAGR

3Y$14,970+$4,970 (+49.7%)14.4% CAGR

5Y$14,969+$4,969 (+49.7%)8.4% CAGR

10Y$14,970+$4,970 (+49.7%)4.1% CAGR

15Y$14,969+$4,969 (+49.7%)2.7% CAGR

20Y$14,970+$4,970 (+49.7%)2.0% CAGR

30Y$14,970+$4,970 (+49.7%)1.4% CAGR

Dividend Reinvestment History (4)▲ Hide

Ex-Date	Dividend	Reinvest Price	Shares Added
2025-08-06	$0.07	$17.07	+0.004101
2025-11-05	$0.07	$18.25	+0.003851
2026-02-05	$0.07	$22.18	+0.003181
2026-05-06	$0.07	$20.48	+0.003456

Loading NBBK total return...

As of 2026-05-08

Returns at a Glance

Period	Total Return	CAGR	Price Only	Div. Contrib.	$10K →
YTD	+4.83%	—	+4.11%	+0.72 pp	$10,483
1Y	+18.40%	18.40%	+16.79%	+1.61 pp	$11,840
3Y	+49.70%	14.39%	+47.66%	+2.03 pp	$14,970
5Y	+49.69%	8.40%	+47.66%	+2.03 pp	$14,969
10Y	+49.70%	4.12%	+47.66%	+2.03 pp	$14,970
15Y	+49.69%	2.73%	+47.66%	+2.03 pp	$14,969
20Y	+49.70%	2.04%	+47.66%	+2.03 pp	$14,970
30Y	+49.70%	1.35%	+47.66%	+2.03 pp	$14,970

Risk & Highlights

Best Year+32.89%2024

Worst Year-2.32%2023

Max Drawdown-15.37%2026-04-09 → 2026-04-23

Annual Returns

Year	Total Return	Price Return	Div.	S&P 500	vs S&P
2026YTD	+9.63%	+9.27%	+0.4pp	+0.41%	+9.2pp
2025	+12.45%	+11.66%	+0.8pp	+16.64%	-4.2pp
2024	+32.89%	+32.89%	—	+24.00%	+8.9pp
2023	-2.32%	-2.32%	—	+24.81%	-27.1pp

NBBK underperformed the S&P 500 by 11.97pp over the past year (+18.40% vs +30.37%).

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NBBK 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
NBBKNB Bancorp, Inc. Common Stock	$772M	-6.9%	+4.8%	+18.4%	+1.6pp	+49.7%	+49.7%	+49.7%
NBTBNBT Bancorp Inc.	$2.4B	+2.5%	+9.3%	+9.0%	+3.4pp	+54.1%	+29.9%	+102.2%
INDBIndependent Bank Corp.	$3.9B	+0.3%	+7.8%	+32.7%	+4.0pp	+77.6%	+11.6%	+109.5%
EGBNEagle Bancorp, Inc.	$799M	+1.0%	+25.8%	+46.7%	+1.1pp	+47.1%	-41.0%	-31.7%
CTBICommunity Trust Bancorp, Inc.	$1.2B	+5.8%	+18.5%	+36.4%	+4.1pp	+111.4%	+66.1%	+133.7%
NECBNortheast Community Bancorp, Inc.	$339M	-0.1%	+9.4%	+10.7%	+4.3pp	+107.8%	+120.2%	+460.8%
OCFCOceanFirst Financial Corp.	$1.1B	+1.2%	+8.1%	+20.5%	+4.9pp	+55.7%	+2.5%	+45.4%
NFBKNorthfield Bancorp, Inc.	$588M	+2.2%	+26.5%	+31.5%	+5.8pp	+65.7%	+0.2%	+20.6%
DCOMDime Community Bancshares, Inc.	$1.6B	+6.5%	+26.4%	+46.6%	+3.8pp	+129.1%	+22.7%	+68.6%
WSFSWSFS Financial Corporation	$3.8B	+8.0%	+31.2%	+37.7%	+1.3pp	+135.3%	+43.1%	+129.0%
CHMGChemung Financial Corporation	$331M	+23.5%	+27.0%	+54.5%	+2.9pp	+108.2%	+70.4%	+198.0%

Compare:NBBK vs NBTB NBBK vs INDB NBBK vs EGBN NBBK vs NBTB vs INDB

About NBBK Dividend Returns

NB Bancorp, Inc. Common Stock (NBBK) is a dividend-paying stock. When dividends are reinvested through a DRIP (Dividend Reinvestment Plan), they purchase additional shares, which then generate their own dividends—creating a compounding effect that can significantly boost long-term returns.

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 NBBK over the past year?

NB Bancorp, Inc. Common Stock (NBBK) delivered a total return of 18.40% over the past year when dividends are reinvested. The price-only return was 16.79%, meaning dividends contributed an additional 1.61 percentage points to total returns.

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

A $10,000 investment in NB Bancorp, Inc. Common Stock one year ago would be worth $11,840 today with dividends reinvested (DRIP). Without reinvesting dividends, the same investment would be worth $11,679. Dividend reinvestment added $161 to the portfolio value.

Q3Does NBBK pay dividends?

Yes, NB Bancorp, Inc. Common Stock (NBBK) pays dividends. In the last year, NBBK paid approximately $0.14 per share in dividends (0.67% yield). Reinvesting these dividends through a DRIP can significantly boost long-term returns — over 20+ years, dividend compounding can account for 30–50% of total returns for dividend-paying stocks.

Q4Did NBBK beat the S&P 500?

No, NB Bancorp, Inc. Common Stock (NBBK) underperformed the S&P 500 by 11.97 percentage points over the past year. NBBK delivered a total return of 18.40%, compared to the S&P 500's 30.37%. This means a passive S&P 500 index fund outperformed NBBK by 11.97pp during this period.

Q5What is NBBK's worst drawdown?

NB Bancorp, Inc. Common Stock (NBBK) experienced a maximum drawdown of -15.37% over the past year, declining from its peak on 2026-04-09 to its trough on 2026-04-23. 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 NBBK's long-term total return over 10, 20, or 30 years?

Here are NB Bancorp, Inc. Common Stock (NBBK)'s long-term returns with dividends reinvested. Over 10 years, the total return is 49.7% (4.1% CAGR) — $10,000 would have grown to $14,970. Over 20 years: 49.7% total return (2.0% CAGR) — $10,000 → $14,970. Over 30 years: 49.7% total return (1.4% CAGR) — $10,000 → $14,970. Long-term investors benefit from compounding: dividends buy additional shares, which generate their own dividends, creating an exponential growth effect.

Q7What was NBBK's best and worst year?

NB Bancorp, Inc. Common Stock's best calendar year was 2024 with a total return of 32.9%. Its worst year was 2023 with a total return of -2.3%. This range shows the volatility investors should expect — the difference between the best and worst year is 35.2 percentage points.