Compare · AVBC vs NBBK

AVBC vs NBBK

Side-by-side comparison of Avidia Bancorp Inc. (AVBC) and NB Bancorp Inc. (NBBK): market cap, price performance, sector, and recent activity on the wire.

Summary

Both AVBC and NBBK operate in Banks (Finance), so they compete in similar markets.
NBBK is the larger of the two at $980.2M, about 2.2x AVBC ($436.0M).
Over the past year, AVBC is up 48.6% and NBBK is up 22.6% - AVBC leads by 25.9 points.
AVBC has been more active in the news (9 items in the past 4 weeks vs 2 for NBBK).
Both have 1 recent analyst rating on file.

PerformanceAVBC+48.56%NBBK+22.64%

2025-10-20+0.00%2026-10-16

MetricAVBC NBBK

Company: Avidia Bancorp Inc.; NB Bancorp Inc.
Price: $22.00+0.71%; $21.86-2.26%
Market cap: $436.0M; $980.2M
1M return: -1.15%; -3.57%
1Y return: +48.56%; +22.64%
Sector: Finance; Finance
Industry: Banks; Banks
Exchange: NYSE; NASDAQ
IPO: 2025; 2023
News (4w): 9; 2
Recent ratings: 1; 1

Latest AVBC

2d
SEC Form 4 filed by Avidia Bancorp Inc.
2d
SEC Form 4 filed by Avidia Bancorp Inc.
2d
SEC Form 4 filed by Avidia Bancorp Inc.
2d
SEC Form 4 filed by Avidia Bancorp Inc.
2d
SEC Form 4 filed by Avidia Bancorp Inc.
2d
SEC Form 4 filed by Avidia Bancorp Inc.
8d
Amendment: SEC Form 3/A filed by Avidia Bancorp Inc.
8d
SEC Form 4 filed by Avidia Bancorp Inc.
12d
Hovde Group initiated coverage on Avidia Bancorp with a new price target
30d
Director Leland Jeffrey B was granted 20,076 shares, increasing direct ownership by 446% to 24,576 units (SEC Form 4)

Latest NBBK

2d
NB Bancorp, Inc. Reports Third Quarter 2026 Financial Results, Declares Quarterly Cash Dividend
2d
SEC Form 8-K filed by NB Bancorp Inc.
31d
KBRA Assigns Ratings to NB Bancorp, Inc.
57d
President & CEO Campanelli Joseph P bought $43,500 worth of shares (2,000 units at $21.75), increasing direct ownership by 0.53% to 379,790 units (SEC Form 4)
57d
SEVP and CFO Lapointe Jean-Pierre bought $4,360 worth of shares (200 units at $21.80), increasing direct ownership by 0.18% to 110,531 units (SEC Form 4)
60d
EVP, Chief Credit Officer Henkin Kevin sold $45,860 worth of shares (2,000 units at $22.93), decreasing direct ownership by 23% to 6,874 units (SEC Form 4)
71d
SEC Form 10-Q filed by NB Bancorp Inc.
87d
NB Bancorp Inc. filed SEC Form 8-K: Results of Operations and Financial Condition, Regulation FD Disclosure, Other Events, Financial Statements and Exhibits
87d
NB Bancorp, Inc. Reports Second Quarter 2026 Financial Results, Declares Quarterly Cash Dividend
114d
SEC Form 11-K filed by NB Bancorp Inc.