Nb Bancorp Inc (NBBK) returns
Nb Bancorp returns over 1 year
$1,000 invested in Nb Bancorp one year ago was worth $1,242 at the close on October 30, 2026, with dividends reinvested. The same $1,000 in the S&P 500 (SPY) became $1,124.
Total return by period
| Period | Total return | A year, on average | $1,000 became | S&P 500 (SPY) |
|---|---|---|---|---|
| 1 month | +0.4% | — | $1,004 | -0.9% |
| 3 months | -2.1% | — | $979.16 | +2.1% |
| Year to date | +13.1% | — | $1,131 | +11.7% |
| 1 year | +24.2% | — | $1,242 | +12.4% |
Nb Bancorp return by calendar year
| Year | NBBK | S&P 500 (SPY) | Difference |
|---|---|---|---|
| 2026 to date | +13.1% | +11.7% | +1.4% |
| 2025 | +10.6% | +17.7% | -7.1% |
| 2024 | +34.3% | +24.9% | +9.4% |
Past returns do not predict future returns. Returns are computed from our daily closes, adjusted for splits and with dividends reinvested on their ex-dates; taxes and trading costs are left out.
See also: NBBK valuation
No forecast, no recommendation. This page describes Nb Bancorp Inc from published data; it is not advice to buy, sell or hold any security.
Figures as of the close on Oct 30, 2026 unless a row says otherwise. Prices are split adjusted; returns include dividends reinvested. Data may be delayed. See the disclaimer and how TrendArc works.