Impact investing pursues financial returns and measurable real-world impact at the same time. It goes beyond traditional investing by asking not just what will this earn? but also what will this fund? It is not philanthropy — the goal is competitive, often market-beating returns, paired with capital flowing toward solutions to real problems: clean energy, healthcare access, sustainable agriculture, and the circular economy. A growing body of evidence shows the two objectives reinforce each other rather than compete. New to the topic? Start with our complete guide to impact investing.

Both pursue financial returns, but they measure companies differently. ESG uses single materiality — how environmental, social, and governance risks affect the company's own performance. Impact investing uses double materiality — it also measures how the company affects the world. The practical consequence: an ESG fund may still hold a fossil-fuel producer, or even a tobacco company, if it manages its own risks well, while an impact-aligned portfolio typically will not. We cover this in depth — including why Philip Morris scores 78/100 on ESG — in the full comparison. ESG vs. impact investing, explained →

Yes, and the evidence keeps strengthening. The aim is returns at or above market benchmarks, not to subsidize good intentions. A landmark study by Schroders and the Oxford Saïd Business School found impact-driven equity portfolios outperformed the market by up to 9% — with lower volatility. Success stories span industries: First Solar in renewables, Tesla in electrification, Stride in education, and the circular-economy disruptors that became Uber and Airbnb. See the deep dive on impact outperformance →

Three structural reasons. First, large addressable markets — the world's biggest problems are also its biggest markets, and companies solving them often have decades of runway. Second, regulatory tailwinds — policy increasingly favors solutions over polluters, shifting capital flows in impact companies' favor. Third, quality alignment — many impact leaders also score highly on fundamentals: strong margins, durable moats, and disciplined balance sheets. They tend to be quality companies first and impact companies second, which is why a quality screen applied to the impact universe so often surfaces top performers.

Impact investments span every major asset class — stocks, ETFs, mutual funds, bonds, private equity, even real estate. On the public-equity side, common themes include clean energy (see top renewable picks), broader climate solutions (see top climate picks), the circular economy, healthcare access, education and inclusion, and water and biodiversity. You can also build impact through exclusion — for example, a fossil-free portfolio that screens out oil, gas, and coal producers, or a broader basket of sustainable stocks.

Ziggma partners with ACA Ethos, a leading impact-data provider that analyzes companies across roughly 600 metrics and more than 80 impact topics. The methodology is publicly documented and fully traceable — every data point ties back to disclosed criteria, not company self-reporting. For each holding, Ziggma surfaces four impact sub-scores — Climate Action, Resource Use, Fair Labor, and Accountability — that roll up into an overall Impact Score, plus the actual data points underneath: renewable-energy share, waste recycled, employee satisfaction, CEO-to-median pay ratio, and more. Read about our impact data methodology →

By relying on facts rather than marketing. Impact ratings come from ACA Ethos, not the companies themselves, and every score traces back to disclosed criteria you can examine. Because the framework measures outward impact directly, companies are not credited just for managing their own risks — which is why an oil major with a polished sustainability report does not slip through the way it might on a conventional ESG screen. Our three-part Greenwashing Files go deeper: how to spot greenwashing in your portfolio and how to build a greenwashing-free portfolio.

Yes — and most investors are surprised by what they find. Link your brokerage or upload a portfolio, and Ziggma's Impact X-Ray analyzes every holding, flagging exposure across fossil fuels, carbon intensity, controversial weapons, labor and human-rights issues, and more. Many "ESG" funds quietly hold fossil-fuel producers, and broad index funds almost always do. Build a greenwashing-free portfolio →

The Ziggma Stock Score is a proprietary 0–100 rating of a company's fundamental strength, combining growth, profitability, valuation, and financial health. It is intentionally separate from impact scoring. Pairing the two lets you filter for companies that are both fundamentally strong and impact-aligned — and that intersection of quality and purpose is where the most durable opportunities tend to live.

No. The impact universe spans technology, healthcare, industrials, real estate, consumer, and utilities. You can build a fully diversified portfolio without holding a single fossil-fuel producer or controversial-weapons manufacturer. The discipline is not finding enough impact-aligned names — it is making sure the ones you pick also clear a fundamental quality bar. The stock and ETF screener lets you filter by impact score, sector, and financial quality simultaneously to find exactly those names.

No. You can start with any portfolio size. Publicly traded stocks, ETFs, and mutual funds make impact investing accessible to anyone with a brokerage account, and many of the most powerful impact themes — clean energy, healthcare access, sustainable consumer brands — are available through liquid, low-fee instruments.

Three steps. Create a free account — no credit card required. Link a brokerage or upload a portfolio (Ziggma securely connects to thousands of brokers, including Fidelity, Schwab, Robinhood, and Vanguard). Then open the Impact tab to see exactly where your money is going now — and where it could go instead. From there, the Portfolio Optimizer fine-tunes holdings for stronger returns and better impact alignment. New to impact investing? Start with our complete guide. Get started free →