MBBC Marathon Bancorp, Inc. Common Stock
XNASStock quote, options chain, IV rank, technicals, AI analysis, and institutional ownership. Iron condor setups Fibonacci levels Insider trading
Market data may be delayed, incomplete, or inaccurate. Not a recommendation to buy, sell, or hold any security. Verify quotes with your broker before trading. See Terms §17.
- Industry (SIC)
- SAVINGS INSTITUTIONS, NOT FEDERALLY CHARTERED (6036) · industry map
- Exchange
- XNAS
- Market Cap
- $0.0B
- Employees
- 31
- List Date
- 2021-04-06
- CIK
- 0001835385
- Headquarters
- Wausau, WI
- Homepage
- https://www.marathonbancorp.com
Marathon Bancorp Inc is a mid-tier holding company for Marathon Bank, a Wisconsin-chartered savings bank, operating as a community-oriented bank offering financial products and services. Its primary deposit products include demand deposits, savings, and certificates of deposit, while its lending products include commercial real estate, commercial and industrial, construction, one-to-four-family residential, multifamily real estate, and consumer loans. The majority of its revenue comes from interest income on loans and debt securities.
Each spoke is this symbol's rank within its sector (0–100; the dotted ring marks the sector median at 50). Higher is more constructive for a long. One spoke — News sentiment — is an absolute reading, not a sector rank. Grayed spokes have no data. A fuller shape is a summary, not a recommendation.
| Month | '23 | '24 | '25 | '26 | Avg |
|---|---|---|---|---|---|
| Jan | -- | 3.04% | 2.12% | 6.73% | 3.96% |
| Feb | -- | -2.57% | 3.44% | 8.50% | 3.12% |
| Mar | -- | 2.16% | -4.21% | -7.58% | -3.21% |
| Apr | -- | -3.11% | -26.21% | 5.40% | -7.97% |
| May | -- | -4.75% | -0.41% | -6.17% | -3.78% |
| Jun | -8.39% | 10.04% | -0.40% | 11.61% | 3.21% |
| Jul | -1.51% | -0.35% | 0.60% | -5.32% | -1.65% |
| Aug | -6.73% | -1.10% | 2.68% | 0.39% | -1.19% |
| Sep | -5.56% | 1.69% | 0.77% | -0.79% | -0.97% |
| Oct | -20.48% | 7.83% | 4.21% | -1.99%* | -2.61% |
| Nov | 35.04% | 4.17% | 1.87% | -- | 13.69% |
| Dec | -3.51% | 41.44% | 8.96% | -- | 15.63% |
| Total | -17.65% | 65.84% | -10.83% | 9.18% | 11.63% |
Quick-reference for reading the values below. Indicators combine to confirm a view — no single one is a trade signal on its own.
- SMA 20 / 50 / 200 — price above = uptrend, below = downtrend. SMA 50 crossing SMA 200 is the golden/death cross.
- EMA 12 / 26 — faster-reacting averages; 12 above 26 is short-term bullish.
- MACD — bullish when MACD > signal (green badge), bearish when below. Divergence from price often precedes reversals.
- ADX (14) — trend strength regardless of direction. <20 range, 20–25 weak trend, 25–50 trend, >50 strong trend.
- +DI / −DI — +DI > −DI favors bulls; the reverse favors bears. Read alongside ADX.
- RSI (14) — <30 oversold, >70 overbought. 40–60 is neutral; trending names can stay extreme.
- Stochastic %K / %D — <20 oversold, >80 overbought. %K crossing %D is an early momentum signal.
- Williams %R — inverted scale: <−80 oversold, >−20 overbought.
Oscillators work best in range-bound markets; in strong trends they give premature reversal signals.
- Bollinger Bands — price at upper band = overbought, lower = oversold. Narrow bands (squeeze) often precede expansion.
- OBV — cumulative volume; rising OBV confirms uptrend, falling OBV confirms downtrend. Divergence from price is a warning.
- Vol SMA 20 / Vol ROC — today's volume vs. 20-day average. Positive ROC with price move = conviction.
- ATR / True Range — average daily $ move; sizing and stop-loss reference.
- HV 20 / 30 / 60 — realized (historical) volatility. Compare to IV on the options cards: IV > HV = rich premium.
Confluence matters: trend + momentum + volume agreeing carries far more weight than any single indicator. For how these feed the spread scanner score, see the algorithm docs →
Trend Indicators
Momentum Oscillators
Volume & Volatility
Data Summary
LLM Stock Analysis Report
Executive Summary
BULLISH with confidence level 8/10
Key drivers: Technical indicators suggest a bullish trend, with momentum oscillators in neutral territory. News sentiment impact: No recent news available.
Primary risks: Volatility is relatively low, but the stock's beta indicates it may be more volatile than the market in the future.
Investment thesis: The stock has strong technical support and momentum indicators, making it an attractive long-term investment opportunity.
Recent news sentiment impact: Since no recent news is available, we cannot assess its impact on the stock price.
Technical Analysis
Trend Direction: Short-term: Neutral (RSI 42.86), Medium-term: Bullish (MACD bullish signal), Long-term: Uptrend (SMA 200 $11.85)
Support/Resistance Levels: Lower Bollinger Band $13.15, Upper Bollinger Band $15.84, SMA 20 $14.50
Momentum Signals:
- RSI interpretation: Neutral (42.86)
- MACD signal: Bullish
- Bollinger Bands position: Squeeze (price touching lower band)
News & Sentiment Analysis
Recent Headlines Summary: No recent news available.
Sentiment Assessment: N/A (no news sentiment data available)
Catalyst Identification: No upcoming events or earnings announced.
Market Narrative: Technical signals are currently dominant, with no significant news-driven catalysts in the near term.
Risk & Volatility Assessment
Beta Interpretation: Low risk beta 0.11 (vs SPY), indicating the stock moves less than the market.
Volatility Regime: Relatively low volatility, but IV premium vs HV30 indicates implied volatilities may be richer than realized.
Options Market Signals: No options data available for analysis.
Market Context & Positioning
Sector Performance: N/A (no sector performance data available)
Institutional Activity: N/A (no institutional activity data available)
Correlation Analysis: The stock is less volatile than the market, with a low beta indicating it may be more stable in the future.
Relative Valuation: The stock's price is within its trading range, indicating potential for further upside.
Key Levels & Action Items
Critical Price Levels: Lower Bollinger Band $13.15, Upper Bollinger Band $15.84, SMA 20 $14.50
Breakout/Breakdown Levels: Any move above the upper band or below the lower band could trigger a significant price move.
Time-Sensitive Catalysts: No upcoming events or earnings announced.
Risk Management: Consider stop-loss levels around the Lower Bollinger Band and position sizing considerations based on volatility.
MBBC Options Activity & IV Rank
Each spread is ranked by a composite score built in three stages. Full documentation →
score = P(profit) × (credit / spread_width)
P(profit) from short leg delta (1 − |delta|), penalised above 85%. Credit uses mid-price to handle illiquid chains fairly.
RR and BF (30-delta) from the persisted per-symbol skew snapshot — wing strikes picked by real greeks.delta, not a moneyness proxy. Put skew boosts bull puts, penalises bear calls. High butterfly boosts iron condors. Calendars are skew-neutral.
- RSI <40 bullish / >60 bearish
- MACD crossover + histogram trend
- Price vs SMA 50 & SMA 200
- Stochastic %K <20 / >80
- Williams %R <−80 / >−20
- Blended ATR + straddle expected-move penalty
- Bollinger Band signal (+ counter-trend penalty)
- BB width — vol contraction boost for ICs
- IV rank ≥ 75 → strong boost for credit spreads
- IV rank < 25 → penalty (selling cheap vol)
- Min open interest across all legs
- OI < 100 → −0.10 · OI < 500 → −0.05
score = base_score × skew_multiplier × tech_multiplier
Both multipliers are shown per spread. Beta is informational only — ATR already captures realized vol. Full algorithm documentation →
Enter a ticker to scan for optimal spread opportunities.
Evaluates all bull put, bear call, iron condor, and calendar spread combinations using GPU-accelerated analysis.
IV(put wing) − IV(ATM), in vol pointsHow much the OTM put trades above (or below) the at-the-money strike. Measures the height of the put-side tail relative to ATM — i.e. how expensive crash insurance is on this name.
- Positive (typical) — wing IV > ATM IV. Standard equity put skew: portfolios bid up crash protection, so OTM puts trade richer than ATM.
- Near zero or negative (unusual) — wing IV ≤ ATM IV. Flat or inverted put side. Common when there's no fear demand, in tightly mean-reverting names, or right after an earnings catalyst clears.
- Percentile vs own 3-yr history: high = wings rich (good time to sell wing premium); low = wings cheap (good time to buy protection).
- Not directional — high or low wings don't predict up or down moves. It's a price tag on tail insurance, not a forecast.
IV(call wing) − IV(put wing), equal delta on each sideWhich side of the smile is the market paying up for? Measures the tilt of the surface — call skew vs put skew at matched deltas.
- Negative (typical) — puts richer than calls. Standard equity behavior: hedging demand makes puts carry a premium. Most large-caps sit in the −1 to −5 vol-point range.
- Strongly negative (< −5 pts) — heavy downside hedging, elevated fear, or an upcoming catalyst (earnings, FDA, macro event). Worth flagging.
- Positive — calls richer than puts. Unusual for equities; signals bullish momentum, short-squeeze positioning, or takeover/M&A speculation.
- Near zero — symmetric surface. Market sees roughly equal up/down risk. Rare for large-caps; more common in commodities and FX.
Wing-vs-ATM tells you how expensive the tails are. Risk Reversal tells you which side is favored. Combined:
- High wing percentile + deeply negative RR → strong put bid; stress or major event priced in. Owning protection costs a premium; selling put premium is dangerous.
- Low wing percentile + near-zero RR → complacency; insurance cheap and balanced. Good environment to add cheap downside hedges.
- Positive RR + elevated wings → call-side fear-of-missing-out; common in squeeze setups. Upside calls expensive, downside puts not bid.
Percentile is the rank of today's reading within ~3 years of this symbol's own history. High percentile = wings are rich relative to history; not a directional signal. Skew is read off the chain in real time, not from CBOE SKEW.
Enter a ticker to render the implied volatility surface.
Enter a ticker to render the implied volatility smile.
Risk Metrics
Analysis Details
Data Points: 216
Period: 252 trading days
Low volatility - stock moves less than market
| Investor | Value | Share of their portfolio | Rank | Q/Q shares | Source |
|---|---|---|---|---|---|
| Citadel Hedge fund Ken Griffin | $168K | #5573 of 6285 | new | 13F |
Hedge funds, activists, holding companies and family offices we track, from their latest 13F (quarter-end value) and Form 4 filings in the last 3 years. Family offices · all institutions
MBBC Institutional Ownership (13F)
Latest filings — 2026-06-30Institutional managers with $100M+ AUM file Form 13F-HR quarterly, due 45 days after quarter end. Holdings are reported gross at quarter-end market value — they are a snapshot, not a real-time position.
- Shares — long equity positions in this name, aggregated across share classes.
- Calls / Puts — notional value of long call / put exposure where this ticker is the underlying.
- % of Float — holder's reported shares divided by the latest diluted shares outstanding. Sums above 100% indicate large custodian / prime broker positions where the same shares are reported by multiple filers.
- Custodian badge — filers with more than 5,000 holdings are typically broker-dealers / custodians reporting customer-held shares, not active managers.
Each filer is counted once at its latest 13F-HR filing. New filings are ingested on a weekly cadence.
| # | Filer | Notional Value | % of Total | Period |
|---|
| # | Filer | Notional Value | % of Total | Period |
|---|
MBBC Insider Trading (Form 4)
Latest: 2026-09-18| Filed | Reporter | Role | Action | Shares | Avg Price | Net $ | Link |
|---|---|---|---|---|---|---|---|
| 2026-09-18 | Nora Spatz | EVP and CAO | Exer (M) | +2,163 | $7.40 | $16.0K | EDGAR |
| 2026-06-17 | Nicholas W Zillges | President and CEO | Buy (P) | +970 | $15.00 | $14.6K | EDGAR |
| 2026-06-16 | Timothy R Wimmer | Director | Award (A) | +3,386 | — | EDGAR | |
| 2026-06-16 | Michelle Knopf | EVP and COO | Award (A) | +5,450 | — | EDGAR | |
| 2026-06-16 | Terry Cornish | SVP and CCO | Award (A) | +3,500 | — | EDGAR | |
| 2026-06-16 | Nora Spatz | EVP and CAO | Award (A) | +6,450 | — | EDGAR | |
| 2026-06-16 | Ann M Werth | Director | Award (A) | +3,386 | — | EDGAR | |
| 2026-06-16 | Thomas L Grimm | Director | Award (A) | +3,386 | — | EDGAR | |
| 2026-06-16 | Amy Zientara | Director | Award (A) | +3,386 | — | EDGAR | |
| 2026-06-16 | Nicholas W Zillges | President and CEO | Award (A) | +16,934 | — | EDGAR | |
| 2026-06-11 | Nora Spatz | EVP and CAO | Buy (P) | +3,819 | $14.35 | $54.8K | EDGAR |
| 2026-06-11 | Nicholas W Zillges | President and CEO | Buy (P) | +1,076 | $14.35 | $15.4K | EDGAR |
| 2026-06-11 | Michelle Knopf | EVP and COO | Buy (P) | +1,041 | $14.35 | $14.9K | EDGAR |
| 2026-06-11 | Terry Cornish | SVP and CCO | Buy (P) | +1,389 | $14.35 | $19.9K | EDGAR |
| 2026-06-05 | Thomas L Grimm | Director | Exer (M) | +300 | $6.48 | $1.9K | EDGAR |
MBBC Insider Holdings
9 insiders · @ $14.50| # | Insider | Role | Shares | Disclosed Exposure | Lifetime OM Net | Filings | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Nicholas W Zillges | President and CEO | 108,365 | $1.57M | $66.8K | 14 | 2026-06-17 |
| 2 | Nora Spatz | EVP and CAO | 30,857 | $447.4K | $54.8K | 11 | 2026-09-18 |
| 3 | Thomas L Grimm | Director | 28,678 | $415.8K | $0 | 4 | 2026-06-16 |
| 4 | Michelle Knopf | EVP and COO | 28,121 | $407.8K | $14.9K | 7 | 2026-06-16 |
| 5 | Amy Zientara | Director | 27,110 | $393.1K | $0 | 3 | 2026-06-16 |
| 6 | Timothy R Wimmer | Director | 20,246 | $293.6K | $0 | 3 | 2026-06-16 |
| 7 | Terry Cornish | SVP and CCO | 8,753 | $126.9K | $19.9K | 6 | 2026-06-16 |
| 8 | Ann M Werth | Director | 8,501 | $123.3K | $0 | 3 | 2026-06-16 |
| 9 | Joy Selting-Buchberger | SVP and CFO | 6,546 | $94.9K | $0 | 4 | 2026-05-19 |
MBBC Board & Officers
As of SEC filings through Sep 18, 2026Directors 5
- Nicholas W Zillges · since Apr 14, 2021
- Thomas L Grimm · since Apr 14, 2021
- Timothy R Wimmer · since Apr 14, 2021
- Ann M Werth · since Jun 28, 2022
- Amy Zientara · listed since Jun 2022
Officers 5
- Nicholas W Zillges · President and CEO · since Apr 14, 2021
- Joy Selting-Buchberger · SVP and CFO · since Apr 14, 2021
- Michelle Knopf · EVP and COO · listed since Jul 2024
- Nora Spatz · EVP and CAO · since Apr 14, 2021
- Terry Cornish · SVP and CCO · listed since Jun 2022
Changes in the last 10 years (17)
| Jul 2, 2024 | Michelle Knopf listed as EVP and COO (previously EVP/Dir. of Mortgage Services) in SEC filings |
| May 18, 2023 | Michelle Knopf listed as EVP/Dir. of Mortgage Services (previously SVP) in SEC filings |
| May 18, 2023 | Amy Zientara no longer listed as Chairwoman of the Board in SEC filings |
| Jun 29, 2022 | Amy Zientara first listed as a director in an SEC filing |
| Jun 29, 2022 | Amy Zientara first listed as Chairwoman of the Board in an SEC filing |
| Jun 28, 2022 | Ann M Werth became a director |
| Jun 1, 2022 | Terry Cornish listed as SVP and CCO (previously VP and CCO) in SEC filings |
| Apr 14, 2021 | Timothy R Wimmer became a director |
| Apr 14, 2021 | Thomas Terwilliger became a director |
| Apr 14, 2021 | Thomas L Grimm became a director |
| Apr 14, 2021 | Terry Cornish became VP and CCO |
| Apr 14, 2021 | Nora Spatz became EVP and CAO |
| Apr 14, 2021 | Nicholas W Zillges became a director |
| Apr 14, 2021 | Nicholas W Zillges became President and CEO |
| Apr 14, 2021 | Michelle Knopf became SVP |
| Apr 14, 2021 | MHC Marathon became a 10% owner |
| Apr 14, 2021 | Joy Selting-Buchberger became SVP and CFO |
Not reported recently (2)
- Thomas Terwilliger · Last reported as a director in an SEC filing dated Jun 29, 2022
- MHC Marathon · Last reported as a 10% owner in an SEC filing dated Apr 14, 2021
Quarterly filings sourced from SEC 10-Q / 10-K reports. TTM tiles aggregate the most recent four quarters; bars show the last ~12 quarters oldest → newest.
- Revenue — top-line sales. Look for consistent YoY growth; seasonal businesses need same-quarter comparisons (Q4 '24 vs Q4 '23).
- Net Income — bottom-line profit after all expenses. Can be volatile from one-time items; red bars = net loss.
- Diluted EPS — net income per share assuming options/converts are exercised. Direct input to the P/E ratio.
- Operating Cash Flow — cash generated from core operations, before capex and financing. Harder to manipulate than net income; growing OCF is a quality signal.
- Sequential growth — quarter-over-quarter trend. Accelerating bars are a momentum signal.
- YoY growth — compare to the same quarter a year earlier to remove seasonality.
- Quality — OCF should roughly track Net Income over time. Large divergence (net income ≫ OCF) flags accruals risk.
- Margins — scan the bar ratios: Net Income / Revenue tells you margin trend without needing a separate chart.
TTM (trailing-twelve-month) smooths seasonality and is used for the P/E calculation. Filings appear 30–90 days after the period closes.