Insider buying last 90 days
No open-market insider purchases were filed for NBBK in the last 90 days.
From Form 4 filings, dated to when each was filed.
Oct 12 close
NB Bancorp has its Q3 2026 earnings date confirmed for 28 October, with a conference call set for 22 October, and analysts anticipating earnings of $0.5850 per share on revenues of $77.30 million, representing growth from the previous year. Separately, a technical setup piece describes neutral near and mid-term readings on NBBK alongside a positive long-term bias, pointing to resistance testing and what it calls an exceptional risk-reward short setup.
NBBK closed at $22.34, up 1%, sitting between its 50-day average of $22.60 and 200-day average of $21.32. Over the past year the stock has returned 28.8%, though the one-month return is -2% and the six-month return is flat. The GekkoIndex reads 60.3, placing NBBK in the Accumulation zone, down 1.3 over the last five days. Price sits 6% below Gekko Fair Value of $23.77, a gap of more than 5%.
The next earnings report lands on 28 October, 16 days away, which falls inside a typical 20-trading-day holding window and follows a prior quarter where actual EPS of $0.38 missed the $0.54 estimate, with an 11.3% reaction. Across the last seven quarters, NB Bancorp has beaten estimates six times, with an average absolute post-earnings move of 2.7%. No insider, Congress, or unusual options activity appears in the current windows. Analyst coverage from two firms shows one buy and one hold, with a consensus target of $25.50, implying 14.1% upside.
Written by AI from the Oct 12, 2026 close and checked automatically against the figures on this page.
NB Bancorp scores 2 supportive, 1 mixed and 1 headwind across the 4 checklist items with data.
Six things swing traders check before a 20-day hold, read from the latest data.
2 supportive1 mixed1 headwind
Averages disagree
Close $22.34 sits between the 50-day ($22.60) and 200-day ($21.32) averages, or the averages disagree.
See the chart60.3, Accumulation
Reading 60.3 is in the Accumulation zone.
See the GekkoIndex6.0% below
Price is 6% below Gekko Fair Value (more than 5% below).
See fair valueNo data
No insider, Congress or unusual options activity in the window.
See smart moneyReports in 16 days
Reports on Oct 28, 2026, 16 days away — inside a typical 20-trading-day hold.
See earningsNo data
Not enough years of history for a seasonal read.
A description of current data, not a recommendation. How this page works
NB Bancorp closed at $22.34 on Oct 12, 2026, +28.8% over the past year, inside a 52-week range of $16.84 to $23.47.
Use the left and right arrow keys to read daily values.
Put NBBK on a Gekko watchlist and see its GekkoIndex, Gekko Fair Value and smart money signals update on the chart as they change.
NB Bancorp sits atop Needham Bank, a community lender that serves individuals and businesses throughout greater Boston and the towns around it. Through this subsidiary, the company handles the routine work of a local bank rather than any specialized financial niche, giving it a reputation tied closely to Needham Bank's presence in the region.
Needham Bank's deposit menu spans certificates of deposit, IRAs, money market and savings accounts, NOW accounts, demand deposits, and checking accounts that either earn interest or do not. On lending, the bank extends credit for commercial real estate and multifamily housing, finances one- to four-family homes, funds mortgage warehouse arrangements, backs construction and land development projects, and supports commercial, industrial and consumer borrowers, along with home equity loans and credit lines. Alongside this lending activity, it holds a mix of securities, among them U.S. treasury and federal agency paper, government-backed residential mortgage bonds, corporate debt, SBA instruments and municipal bonds.
The company traces its roots to 1892 and keeps its headquarters in Needham, Massachusetts. Its stock trades on NASDAQ under the ticker NBBK.
NB Bancorp’s GekkoIndex — Gekko’s 0 to 100 smart money score — reads 60.3, in the Accumulation zone, down 1.3 points over five sessions.
Down 1.3 points over five sessions.
Reading for Oct 12, 2026
| Zone | Readings | 5 days | 20 days | ||
|---|---|---|---|---|---|
| Buying | 26 | +0.8% | +7.3% | ||
| Accumulation (current zone) | 191 | +0.9% | +5.9% | ||
| Neutral | 400 | +0.1% | 0.0% | ||
| Distribution | 57 | +0.6% | −2.4% | ||
| Selling | 8 | Too few readings yet | |||
Average NBBK share-price change over the trading days after each daily reading in its GekkoIndex history. Across every stock Gekko tracks, Accumulation readings averaged +2.2% over 20 days. Past behaviour doesn’t guarantee future results.
Accumulation zone: Institutional interest building. About the five zones →
NB Bancorp trades 6.0% below Gekko Fair Value of $23.77, so the shares are undervalued on Gekko’s estimate.
Gekko’s own estimate of what NB Bancorp shares are worth, recalculated every trading day.
$23.77
Gekko Fair Value, Oct 10, 2026
6.0% Undervalued
At the end of Aug 2026 the price was 7.9% below the estimate.
No open-market insider purchases were filed for NB Bancorp, and no Congress trades were disclosed, in the last 90 days.
Plus buybacks, unusual options and fund positions, each dated to when it became public.
No open-market insider purchases were filed for NBBK in the last 90 days.
From Form 4 filings, dated to when each was filed.
No trades in NBBK were disclosed by members of Congress in the last 90 days.
From congressional disclosures, which report amounts as ranges.
NB Bancorp has been buying back its own shares.
From company filings.
NB Bancorp reports on Oct 28, 2026 (16 days away), and beat the EPS estimate in 6 of its last 7 reports.
Oct 28, 2026
16 days away
| Reported | EPS | Revenue | Move |
|---|---|---|---|
| Apr 22, 2026 | $0.38 est $0.54 | $69.38M est $71.57M | −11.3% |
| Jan 22, 2026 | $0.51 est $0.45 | $87.94M est $75.75M | −0.3% |
| Oct 22, 2025 | $0.45 est $0.42 | $83.25M | +2.8% |
| Jul 23, 2025 | $0.40 est $0.35 | $82.97M | +1.7% |
| Feb 26, 2025 | $0.34 est $0.32 | $80.98M | −1.0% |
| Oct 30, 2024 | $0.33 est $0.26 | $77.27M | +2.3% |
| Jul 24, 2024 | $0.24 est $0.23 | $74.10M | +0.9% |
| Mar 28, 2024 | −$0.32 | $67.14M | −1.2% |
“Move” is the close of the first session after the report compared with the close of the last session before it, so it reads the same whether the company reported before the open or after the close.
Analysts’ average 12-month price target for NB Bancorp is $25.50, +14.1% from the last close, from 2 firms rating the stock in the last 90 days.
Each firm’s latest rating in the last 90 days: 2 firms.
| Date | Firm | Target | vs price |
|---|---|---|---|
| Jul 28 | KBW | $25 | +11.9% |
| Jul 23 | Piper Sandler | $26 | +16.4% |
Gekko doesn’t publish price predictions. These are analyst targets and historical base rates, which don’t guarantee future results.
NB Bancorp’s market cap is $927.2M, with a P/E ratio of 14.7 and revenue of $249.2M over the last twelve months.
2 headlines about NB Bancorp from the past week, newest first, each linking to the publisher.
NB Bancorp’s 6 largest industry peers by market value, with today’s move, GekkoIndex zone and gap to Gekko Fair Value.
| Stock | GekkoIndex zone | vs Fair Value |
|---|---|---|
| CMCanadian Imperial Bank of Commerce | Accumulation | 5.7% below |
| USBU.S. Bancorp | Accumulation | 11.0% below |
| NUNu | Neutral | 0.7% below |
| TFCTruist Financial | Accumulation | 9.6% below |
| FITBFifth Third Bancorp | Accumulation | 11.2% below |
| MTBM&T Bank | Accumulation | 9.1% below |
A peer links to its own page where one exists.
NB Bancorp’s market cap is $927.2M at the Oct 12, 2026 close of $22.34, with 43.82M shares outstanding. The shares trade on a P/E ratio of 14.7.
The consensus analyst 12-month price target for NB Bancorp is $25.50, +14.1% from the last close. Of the 2 firms that rated the stock in the last 90 days, 1 rate it a buy, 1 a hold and 0 a sell. Gekko doesn’t publish price predictions of its own.
On Gekko’s estimate NB Bancorp is undervalued: the Oct 12, 2026 close of $22.34 is 6.0% below Gekko Fair Value of $23.77. Gekko Fair Value is recalculated every trading day, and a gap inside 5% either way counts as about fair value.
NB Bancorp is expected to report on Oct 28, 2026 (16 days away). Analysts expect earnings of $0.59 per share on revenue of $77.30M. NB Bancorp beat the earnings estimate in 6 of its last 7 reports, moving 2.7% on average across the report.
NB Bancorp’s 52-week high is $23.47 and its 52-week low is $16.84; it closed at $22.34 on Oct 12, 2026, +28.8% over the past year.
Gekko describes the data; it does not make buy or sell recommendations. On the swing-trade checklist, 2 of the 4 items with data read as supportive (gekkoindex and fair value), 1 as mixed (trend) and 1 as a headwind (earnings risk). The checklist is a description of current data, not a recommendation.
During US trading hours the price at the top of the page is a delayed quote, refreshed every 15 minutes; everything else is rebuilt after each US market close. The GekkoIndex, Gekko Fair Value and the checklist are Gekko’s own, and the Gekko Brief is written by AI from this page’s data and checked against it before it is published. How Gekko’s data works →
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