Index Exchange vs Sharethrough

Both tools are listed under Programmatic DSP/SSP & Contextual AdTech, and both have been fact-checked by a named editor. This page lines up their structured data and quotes each review’s limitations and pricing notes; it does not pick a winner.

Index Exchange

Independent programmatic supply-side platform delivering ultra-low-latency auction mechanics, edge decisioning through Index Cloud, and omnichannel.

Pricing: Custom / enterprise pricing · Autonomy: L3 · Conditional automation · Moat: 3.6/5.0 (Proprietary moat)

Target fit: DTC / eCommerce, Enterprise Brands (Web SaaS)

Read the Index Exchange review

Sharethrough

Omnichannel supply-side platform delivering automated ad enhancement rendering, curated marketplace inventory, and carbon-reduction programmatic routing.

Pricing: Custom / enterprise pricing · Autonomy: L3 · Conditional automation · Moat: 4.2/5.0 (Proprietary moat)

Target fit: DTC / eCommerce, Enterprise Brands (Web SaaS)

Read the Sharethrough review

How Index Exchange and Sharethrough differ

Index Exchange was founded earlier (2003) than Sharethrough (2007).
Headquarters: Index Exchange in Toronto, Ontario, Sharethrough in Montreal, Quebec.

Computed from the fields below. Only editor-verified ratings and vendor-sourced prices are compared.

Side-by-side facts

Field	Index Exchange	Sharethrough
Subtrack	Programmatic DSP/SSP & Contextual AdTech	Programmatic DSP/SSP & Contextual AdTech
Pricing	Custom / enterprise pricing	Custom / enterprise pricing
Pricing model	Enterprise / quote	Enterprise / quote
Free access	No free plan disclosed	No free plan disclosed
Enterprise plan	Yes	Yes
AI autonomy level	L3 · Conditional automation	L3 · Conditional automation
Moat tier	Proprietary moat	Proprietary moat
Delivery	Web SaaS	Web SaaS
Audience	DTC / eCommerce, Enterprise Brands	DTC / eCommerce, Enterprise Brands
Headquarters	Toronto, Ontario	Montreal, Quebec
Fact-checked	Vasilia Xia, Oct 14, 2026	Vasilia Xia, Oct 14, 2026

AI Head-to-Head Procurement Simulator · Evidence-Locked Dossier

Index Exchange vs Sharethrough: TCO & constraint stress test

Test how both tools behave under your team size, monthly budget ceiling, CRM ecosystem, and governance guardrails.

1. Team / Seat Scale

2. Monthly Budget Ceiling

3. Primary Stack

4. Guardrail

At 5 seats and a $800/mo ceiling, both Index Exchange and Sharethrough land in the same risk band (High Deal-Risk · Constraint Mismatch).

Index Exchange

High Deal-Risk · Constraint Mismatch

Estimated Floor (5 Seats · Enterprise / Custom)Custom Quote (Custom / enterprise pricing)Vendor does not publish a self-serve USD floor on its pricing page; requires sales qualification.Sales-gated pricing vs. $800/mo cap (High quote risk)

Opaque Enterprise Quoting vs. SMB/Mid-Market Budget: Index Exchange does not disclose a public self-serve floor (Custom / enterprise pricing). Buyers with a $800/mo cap face high sales-qualification friction.
Sales-Gated Contract Terms: Commercial access operates on an enterprise transaction-fee framework, where pricing is available on request through tailored enterprise sales quotes based on organizational scale and seats.
Primary Operational Bottleneck: Bid Stream Throttling Overhead: High-concurrency DSP connections face rigorous query-per-second throttling when buyers cannot maintain sustained win rates across high-volume CTV pipelines.

Walk-Away Rule: Walk away if you require transparent self-serve monthly billing or your budget ceiling is under $1,000/mo (Index Exchange requires sales-gated custom quoting).

Negotiation Lever: Demand a 30- to 60-day paid pilot opt-out clause in the Index Exchange order form before signing a 12-month enterprise commitment.

Index Exchange Pricing ↗Full Index Exchange Review →

Sharethrough

High Deal-Risk · Constraint Mismatch

Opaque Enterprise Quoting vs. SMB/Mid-Market Budget: Sharethrough does not disclose a public self-serve floor (Custom / enterprise pricing). Buyers with a $800/mo cap face high sales-qualification friction.
Sales-Gated Contract Terms: Sharethrough operates on an enterprise transactional model wherein commercial pricing is available on request through tailored enterprise sales quotes based on organizational scale and seats.
Primary Operational Bottleneck: Equativ Migration Friction: Unified infrastructure alignment post-merger requires ongoing reconciliation of legacy publisher IDs, reporting schemas, and contract parameters across combined ad server environments.

Walk-Away Rule: Walk away if you require transparent self-serve monthly billing or your budget ceiling is under $1,000/mo (Sharethrough requires sales-gated custom quoting).

Negotiation Lever: Demand a 30- to 60-day paid pilot opt-out clause in the Sharethrough order form before signing a 12-month enterprise commitment.

Sharethrough Pricing ↗Full Sharethrough Review →

Interactive Head-to-Head Scenario Red-Teamer · Fact-Gate Verified

Limitations

Index Exchange

Operational considerations and platform boundaries include: Bid Stream Throttling Overhead: High-concurrency DSP connections face rigorous query-per-second throttling when buyers cannot maintain sustained win rates across high-volume CTV pipelines.

Full limitations in the Index Exchange review

Sharethrough

Operational considerations and platform boundaries include: Client-Side Script Overhead: Dynamic creative modification libraries injected during header bidding execution increase browser DOM parsing time, risking Core Web Vitals score degradation on high-density publisher layouts.

Full limitations in the Sharethrough review

Pricing notes

Index Exchange: Custom / enterprise pricing

Commercial access operates on an enterprise transaction-fee framework, where pricing is available on request through tailored enterprise sales quotes based on organizational scale and seats.

Pricing details in the Index Exchange review

Sharethrough: Custom / enterprise pricing

Sharethrough operates on an enterprise transactional model wherein commercial pricing is available on request through tailored enterprise sales quotes based on organizational scale and seats.

Pricing details in the Sharethrough review

Frequently asked questions: Index Exchange vs Sharethrough

How does Index Exchange pricing compare to Sharethrough in 2026?

Index Exchange is listed at Custom / enterprise pricing (enterprise / quote, no free plan disclosed), whereas Sharethrough is listed at Custom / enterprise pricing (enterprise / quote, no free plan disclosed).

How do Index Exchange and Sharethrough compare on AI autonomy and moat depth?

On the MarTechRadar L1–L5 scale, Index Exchange is rated L3 · Conditional automation with a Proprietary moat moat (3.6/5.0), while Sharethrough is rated L3 · Conditional automation with a Proprietary moat moat (4.2/5.0).

Which teams are Index Exchange and Sharethrough built for?

Index Exchange is a Web SaaS product in Programmatic DSP/SSP & Contextual AdTech designed for DTC / eCommerce, Enterprise Brands. Sharethrough is a Web SaaS product in Programmatic DSP/SSP & Contextual AdTech designed for DTC / eCommerce, Enterprise Brands.

What are the main limitations of Index Exchange vs Sharethrough?

For Index Exchange: Operational considerations and platform boundaries include: Bid Stream Throttling Overhead: High-concurrency DSP connections face rigorous query-per-second throttling when buyers cannot maintain sustained win rates across high-volume CTV pipelines. For Sharethrough: Operational considerations and platform boundaries include: Client-Side Script Overhead: Dynamic creative modification libraries injected during header bidding execution increase browser DOM parsing time, risking Core Web Vitals score degradation on high-density publisher layouts.

Excerpts are quoted verbatim from each fact-checked review. Last updated Oct 14, 2026.