Mark Heider Portfolio
Invests via Peirce Capital Management, LLC | Managed by Wesley M. Peirce, Mark D. Heider, George L. Williamson
Invests via Peirce Capital Management, LLC
Managed by Wesley M. Peirce, Mark D. Heider, George L. Williamson
Automatically Tracked
Mark Heider Profile
Veteran investor and operator focused on growth-stage technology and fintech companies, Mark Heider brings experience in corporate development, M&A and go-to-market scaling. He is known for sourcing cross-border partnerships, advising on product-market fit and leading strategic exits. Market-facing profile suits lead or board roles for venture and private equity-backed software businesses seeking commercialization and M&A outcomes.
Veteran investor and operator focused on growth-stage technology and fintech companies, Mark Heider brings experience in corporate development, M&A and go-to-market scaling. He is known for sourcing cross-border partnerships, advising on product-market fit and leading strategic exits. Market-facing profile suits lead or board roles for venture and private equity-backed software businesses seeking commercialization and M&A outcomes.
Investment Philosophy & Strategy
Focuses on growth-stage technology and fintech opportunities where operational experience accelerates commercialization and exit value. Prefers lead or active board investments, deploying capital alongside strategic corporate development and cross-border partnership plays. Investment style blends revenue-driven underwriting, KPI-led diligence, and hands-on go-to-market support with a 3–7 year horizon targeting strategic M&A or scale buyout outcomes while managing execution risk.
Focuses on growth-stage technology and fintech opportunities where operational experience accelerates commercialization and exit value. Prefers lead or active board investments, deploying capital alongside strategic corporate development and cross-border partnership plays. Investment style blends revenue-driven underwriting, KPI-led diligence, and hands-on go-to-market support with a 3–7 year horizon targeting strategic M&A or scale buyout outcomes while managing execution risk.
Disclaimer: This Portfolio is derived from and computed based on publicly available data from SEC filings.
Gain and growth charts are calculated per selected timeframe:
53.39%
Gain -0.36%
Monthly
1.34%
Yearly
17.39%
Drawdown
16.95%
$279.01M
Equity
Holdings
$279.01M
Investment
$206.59M
$84.37M
Profit -$811,878.5
Realized
$11.95M
Unrealized
$72.42M
Dividends
$12.49M
Goals
Avg. 78.5% completed goals
Yearly
Gain > 5% 2026
Yearly
Gain < 20% 2026
Today
Compared To Yesterday
Gain
-0.36%
Profit
-$811,878.5
Win %
86%
This Week
Compared To Last Week
Gain
0.8%
Profit
$2.22M
Win %
86%
This Month
Compared to last month
Gain
-0.29%
Profit
-$811,878.5
Win %
86%
This Year
Compared to last year
Gain
2.87%
Profit
$7.78M
Win %
86%
AMZN Amazon.com Inc
+15.32%
+$43,151.67 
TALO Talos Energy Inc.
+3.97%
+$21,174.64 
MSFT Microsoft Corp.
+3.02%
+$40,955.31 
NVDA NVIDIA Corporation
+2.93%
+$22,291.87 
CVX Chevron Corporation
+2.35%
+$9,559.8 
LNG Cheniere Energy Inc.
+2.13%
+$6,926.09 
COP ConocoPhillips
+1.22%
+$3,877.3 
VUG Vanguard Growth ETF
+1.1%
+$2,656.08 
VWO Vanguard FTSE Emerging Markets ETF
+0.96%
+$5,854.24 
TSLA Tesla, Inc.
+0.76%
+$3,910.49 
IEMG iShares Core MSCI Emerging Markets ETF
+0.73%
+$7,016.76 
ESGV Vanguard ESG U.S. Stock ETF
+0.68%
+$5,235.89 
SPTM SPDR Portfolio S&P 1500 Composite Stock Market ETF
+0.62%
+$4,475.52 
ITOT iShares Core S&P Total U.S. Stock Market ETF
+0.59%
+$160,260.23 
DFAU Dimensional US Core Equity Market ETF
+0.54%
+$7,295.12 
VTI VANGUARD TOTAL STOCK MKT ETF
+0.53%
+$21,241.06 
DFAE Dimensional Emerging Core Equity Market ETF
+0.46%
+$1,566.72 
CMC Commercial Metals Company
+0.45%
+$3,399.46 
DFEM Dimensional Emerging Markets Core Equity 2 ETF
+0.43%
+$73,494.08 
DFAC Dimensional U.S. Core Equity 2 ETF
+0.36%
+$119,397.6 
DFUV Dimensional US Marketwide Value ETF
+0.22%
+$21,431.4 
AVUV Avantis U.S. Small Cap Value ETF
+0.03%
+$8,664.44 
DFSV Dimensional US Small Cap Value ETF
0%
$0 
VTIP Vanguard Short-Term Inflation-Protected Securities Index Fund
0%
$0 
AAPL Apple Inc.
-7.35%
-$22,779.08 
MU Micron Technology, Inc.
-5.9%
-$8,983.61 
ABBV AbbVie Inc.
-2.51%
-$5,648.31 
XOM Exxon Mobil Corporation
-0.97%
-$7,232.31 
IDEV iShares Core MSCI International Developed Markets ETF (IDEV)
-0.72%
-$125,346.54 
SPDW SPDR Portfolio Developed World ex-US ETF
-0.71%
-$9,993.57 
REET iShares Global REIT ETF
-0.59%
-$7,686.04 
DFIC Dimensional International Core Equity Market ETF
-0.57%
-$15,323.44 
IVLU iShares MSCI International Value Factor ETF
-0.55%
-$3,347.04 
LLY Eli Lilly and Company
-0.53%
-$2,470.39 
DISV Dimensional International Small Cap Equity Fund
-0.52%
-$9,090.4 
DFGR Dimensional Global Real Estate ETF
-0.5%
-$36,643.8 
AVDV Avantis International Small Cap Value ETF
-0.48%
-$111,376 
DFIV Dimensional International Value ETF
-0.47%
-$80,031.78 
BSVO EA Bridgeway Omni Small-Cap Value Fund
-0.25%
-$71,026.96 
VB Vanguard Small-Cap ETF
-0.22%
-$1,305.44 
DFAX Dimensional World ex U.S. Core Equity 2 ETF
-0.22%
-$17,015.36 
RSP Invesco S&P 500 Equal Weight ETF
-0.17%
-$854.71 
VGIT Vanguard Intermediate-Term Treasury Fund
-0.17%
-$26,238.3 
DFAT Dimensional US Targeted Value ETF
-0.15%
-$1,733.27 
DFSD Dimensional Short-Duration Fixed Income ETF
-0.06%
-$5,775.36 Events
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Dividends
Dividend Analysis
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| Trades 313 | Longs Won 270/313 86% | Profit Factor 79.3 |
| Profitability | Shorts Won 0/0 0% | Standard Deviation $1.03M |
| Average Win $316,465.77 | Best Trade (Aug 14) $10.92M | Sharpe Ratio -11.06 |
| Average Loss -$25,057.31 | Worst Trade (Sep 01) -$271,351.37 | Z-Score 19.97 (100%) |
| Commissions $0 | Avg. Trade Length 1y 5m 1w 1d | Expectancy $269,547.27 |
| Loss Size | 100% | 90% | 80% | 70% | 60% | 50% | 40% | 30% | 20% | 10% |
| Probability of Loss | <0.01% | <0.01% | <0.01% | <0.01% | <0.01% | <0.01% | <0.01% | <0.01% | <0.01% | <0.01% |
| Consecutive Losing Trades | 11,111 | 10,000 | 8,889 | 7,778 | 6,667 | 5,556 | 4,444 | 3,333 | 2,222 | 1,111 |
Hover over the desired column for a detailed explanation.
Returns
Overall, Monthly| Symbol | Quantity | Cost | Value | Comm. | Profit ($) | Gain (%) | Change |
|---|---|---|---|---|---|---|---|
| AAPL Apple Inc. | 929 | $178,650.04 | $286,977.39 | - | $108,327.35 | 60.64% | -7.354% |
| ABBV AbbVie Inc. | 873 | $219,794 | $219,070.62 | - | -$723.38 | -0.33% | -2.513% |
| AMZN Amazon.com Inc | 1,196 | $224,561.42 | $324,809.67 | - | $100,248.25 | 44.64% | +15.321% |
| AVDV Avantis International Small Cap Value ETF | 222,752 | $14.43M | $23.31M | - | $8.88M | 61.52% | -0.476% |
| AVUV Avantis U.S. Small Cap Value ETF | 216,611 | $25.7M | $27.14M | - | $1.43M | 5.58% | +0.032% |
| BSVO EA Bridgeway Omni Small-Cap Value Fund | 972,972 | $20.32M | $28.48M | - | $8.17M | 40.19% | -0.249% |
| CMC Commercial Metals Company | 10,966 | $548,738.95 | $753,583.52 | - | $204,844.57 | 37.33% | +0.453% |
| COP ConocoPhillips | 2,674 | $289,259.93 | $322,163.52 | - | $32,903.59 | 11.38% | +1.218% |
| CVX Chevron Corporation | 2,115 | $316,416.5 | $416,295.45 | - | $99,878.95 | 31.57% | +2.35% |
| DFAC Dimensional U.S. Core Equity 2 ETF | 746,235 | $22.11M | $33.2M | - | $11.09M | 50.17% | +0.361% |
| DFAE Dimensional Emerging Core Equity Market ETF | 9,216 | $266,803.43 | $345,784.32 | - | $78,980.89 | 29.6% | +0.455% |
| DFAT Dimensional US Targeted Value ETF | 15,757 | $824,726.95 | $1.11M | - | $289,765.66 | 35.13% | -0.155% |
| DFAU Dimensional US Core Equity Market ETF | 26,054 | $1.03M | $1.35M | - | $323,128.17 | 31.5% | +0.544% |
| DFAX Dimensional World ex U.S. Core Equity 2 ETF | 212,692 | $5.21M | $7.77M | - | $2.56M | 49.14% | -0.219% |
| DFEM Dimensional Emerging Markets Core Equity 2 ETF | 459,338 | $11.79M | $17.32M | - | $5.53M | 46.89% | +0.426% |
| DFGR Dimensional Global Real Estate ETF | 244,292 | $6.34M | $7.28M | - | $943,283.94 | 14.89% | -0.501% |
| DFIC Dimensional International Core Equity Market ETF | 69,652 | $1.85M | $2.65M | - | $804,829.08 | 43.55% | -0.574% |
| DFIV Dimensional International Value ETF | 296,414 | $10.24M | $16.98M | - | $6.73M | 65.75% | -0.469% |
| DFSD Dimensional Short-Duration Fixed Income ETF | 192,512 | $9.08M | $9.11M | - | $25,010.9 | 0.28% | -0.063% |
| DFSV Dimensional US Small Cap Value ETF | 19,933 | $586,628 | $790,542.78 | - | $203,914.78 | 34.76% | 0.0 |
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FAQ
Which stocks have generated the highest profits for Mark Heider?
The largest contributions to the portfolio's profits come from the following stocks: EA Bridgeway Omni Small-Cap Value Fund - $6.83M, Avantis International Small Cap Value ETF - $2.48M, Dimensional International Value ETF - $2.36M, Dimensional U.S. Core Equity 2 ETF - $2.18M, and Vanguard Intermediate-Term Treasury Fund - $1.4M. These positions have been the main drivers of growth and have significantly impacted the investor's overall performance.
Which stocks have generated the largest losses for this investor?
The largest losses in the portfolio are associated with the following stocks: Q2 Holdings Inc - $161,585.7, Microchip Technology Incorporated - $134,244, BP p.l.c. Sponsored ADR - $41,999.77, Occidental Petroleum Corporation - $27,394.35, and Magnolia Oil & Gas Corp - $1,466.08. These positions have had the most negative impact on overall performance and highlight the weaker areas of the portfolio.
What dividends does Mark Heider's portfolio generate?
The portfolio generates substantial dividend income, with a total of $12.49M earned over time. The largest contributors to dividend income include Avantis International Small Cap Value ETF - $1.63M, Vanguard Intermediate-Term Treasury Fund - $1.39M, Dimensional International Value ETF - $1.19M, EA Bridgeway Omni Small-Cap Value Fund - $1.19M, and iShares Core MSCI International Developed Markets ETF (IDEV) - $1.03M. This indicates that dividends play a meaningful role in the investor's overall strategy.
How stable are Mark Heider's monthly returns?
Mark Heider's monthly returns show a mixed pattern. Some months are relatively calm, while others are noticeably stronger or weaker, which suggests that performance is not fully consistent over time. This points to a strategy that may offer attractive upside but can also experience uneven short-term results.
Can Mark Heider's strategy be considered aggressive or moderate?
Mark Heider's strategy leans toward a moderately conservative profile. While there is still some exposure to market fluctuations, the overall structure and risk levels suggest a focus on maintaining stability rather than pursuing aggressive growth.
Should beginners follow Mark Heider's strategy?
Mark Heider's strategy may be suitable for beginners, but with some caution. While the overall approach is not overly complex, it still involves a certain level of risk and variability. Beginners should be prepared for occasional fluctuations and ensure they understand the strategy before trying to follow it.
