Optimizers/Bulk/BOPT
Optimizer · 05Pre-fixture loadability + bulk stowage planning

BOPT.
Loadability calls in minutes, not hours.

The smarter path to higher profits in bulk shipping

Pre-fixture loadability analysis for chartering desks. Automated stowage planning for operations. One engine, two audiences — calculations that used to take hours done in minutes. The bulk-side counterpart to SONATA in containers, built around the same idea: encode the expert, scale the decision.

At a glance
ProductBOPT
SectorDry bulk shipping
AudiencesChartering + ops
EngineAI/ML multi-objective
DeploymentSaaS · cloud
Minutes
Loadability calls
down from hours
+6%
More cargo loaded
per Use Case 1
−12%
Less ballast water
per Use Case 2
−10%
Ballast-leg fuel burn
per Use Case 2

What a BOPT plan looks like

Hold-by-hold, port-by-port, stability-validated.

WATERLINES→ QINGDAOIRON OREHOLD 1→ SHANGHAIIRON OREHOLD 2→ NINGBOIRON OREHOLD 3→ TIANJINIRON OREHOLD 4→ DALIANIRON OREHOLD 5DRAFTONE COMMODITY · FIVE DISCHARGE PORTS · STABILITY-VALIDATED · BALLAST-OPTIMIZED
QingdaoShanghaiNingboTianjinDalian·Illustrative — BOPT plans real fleets across iron ore, coal, grain and parcel trades.

Built for two desks

One engine. Two audiences. Same loadability math.

Chartering teams quote faster. Operations teams plan smarter. Both run on the same engine — and answer the same question: will this cargo, on this vessel, in this rotation, actually earn?

For commercial teams

Quote a fixture before someone else does.

Simulate cargo loadables across multiple vessels in minutes. Compare draft, port and cargo profile. Be first cab on the rank — no waiting on captains or marine ops.

  • Pre-fixture loadability analysis
  • Vessel screening on draft + port limits
  • TCE-driven fixture decisions

For operations planners

Stowage plans that build themselves.

Multi-port rotations, multi-grade cargo, ballast and trim resolved together. Validated against GM, trim, deflection, SFBM, shear and bending before being issued for execution.

  • Stowage plan generation
  • Stability + load-line compliance
  • Hold-by-hold optimization

Four ways BOPT wins

The promise, broken into four pillars.

Every BOPT deployment delivers against the same four outcomes — regardless of fleet size, trade lane, or commodity.

Maximize profits, minimize effort

Automated stowage planning that takes hours of marine-ops work and returns a validated plan in minutes. Loadable cargo maximized. Manual rework eliminated.

Stability and load-line resolved in one model

Multi-grade, multi-hold, multi-port cargo planned in one pass. GM, trim, deflection, SFBM, shear and bending all validated before the plan is issued — no marine-ops rework loop.

Fast, confident commercial decisions

Instant vessel suitability evaluation using historical data. Elevate agility with AI and ML, adapting in real time to operational disruptions. Reduce vessel-fixing delays — be the first cab in the rank.

Future-proof through AI → optimization → automation

Convert expert knowledge into intelligent systems. Tech-enabled, data-driven decision engines. Workflow automation for consistent outcomes at scale.

What this looks like in practice

Two named scenarios. Real numbers. From the field.

One on the chartering desk, one on the operations desk — the two ends of bulk shipping where BOPT changes the unit economics.

Chartering · Use Case 1

Pre-Fixture Vessel Screening

65,000 MT COALRICHARDS BAYROTTERDAM

The chartering team needs to load 65,000 MT of coal from Richards Bay to Rotterdam under a tight fixture window.

BOPT action

  • Pulls LOA, beam, deadweight from Vessel Master
  • Fetches port draft and SW density from Port & Distance Masters
  • Runs simultaneous loadability analyses on three Panamax candidates
+6%
more cargo loaded
1,000 MT
less ballast
Boosts
TCE

Charter negotiations accelerate. The right ship is fixed for the right voyage — before a competitor closes it.

Operations · Use Case 2

Automated Load Plan & Ballast Optimization

IRON ORE · MULTI-PORTBRAZILCHINA

An operations planner must ensure a safe, efficient stowage for an iron-ore voyage from Brazil to China.

BOPT action

  • Defines multi-port rotation in Schedule Input (min 2, max 10 ports)
  • Uploads cargo specs — grade, stowage factor, MOLOO — into Cargo Input
  • Sets stability + stress limits (shear, bending); ballast on Auto
−12%
less ballast water
2 cm
optimal trim
−10%
ballast-leg fuel burn

A fully compliant hold-by-hold load plan, validated against GM, trim and stress charts. Issued for execution in minutes.

The optimization framework

Real-world constraints, resolved as one problem.

Bulk loadability isn't three separate spreadsheets — it's one math problem with three constraint families. BOPT models all three together; every plan is feasible across all of them.

VESSELCARGOSCHEDULINGGM · trimSFBM · draftgrade · densityload-line zoneETA · ETD2–10 portsFEASIBLEPLAN

Vessel constraints

  • Size, type, and draft limits
  • Fuel consumption profile
  • Ballast and trim requirements
  • Tank capacity and sequence logic
  • Stability — GM, trim, deflection, SFBM

Cargo constraints

  • Type, compatibility, segregation rules
  • Loadable quantity limits
  • Preferred stowage sequence
  • Contractual quantity commitments
  • Load-line zone regulations

Scheduling constraints

  • ETA and ETD targets
  • Turnaround time per port
  • Voyage duration limits
  • Historical voyage plan inputs
  • Multi-port rotations (2–10 ports)

Why algorithms, not spreadsheets

With numerous variables to consider, manual planning cannot achieve the same level of efficiency or consistency.

BOPT assists planners in ensuring smarter vessel scheduling — satisfying cargo loadables and adhering to every operational constraint. Advanced algorithms optimize cargo loadables, port, and vessel constraints, resulting in optimal asset utilization, reduced operational costs, and higher ROI.

Key capabilities

Nine things BOPT does for bulk operators.

Pre-fixture loadability, stowage optimization, stability validation, scenario comparison, fuel management, AI decision support — on one platform, not six spreadsheets and a planner's memory.

Pre-Fixture Loadability Analysis

Empowers chartering teams to instantly simulate loadable cargo on multiple vessels — eliminating the need for shipboard calculations and cutting pre-fixture turnaround from hours to minutes.

  • Simulate cargo loadables across vessels in minutes
  • Compare vessel options by draft, port, and cargo profile
  • Accelerate fixture decisions with validated data

Intelligent Stowage Plan Optimization

Automates complex cargo planning with real-time consideration of draft limits, trim, tank capacities and hold sequences — multi-grade, multi-hold, multi-port resolved as one problem.

  • Multi-hold, multi-grade stowage plans per vessel
  • Grade compatibility and parcel sequencing enforced
  • Optimal loading — minimize water ballast onboard

Stability & Compliance Validation

Evaluates GM, trim, deflection, SFBM, shear and bending parameters. Every plan validated against vessel-specific stability requirements and load-line zone regulations before issue.

  • Stability params: GM, trim, deflection, SFBM
  • Stress validation: shear and bending charts
  • Load-line zone regulations enforced

Real-Time Planning Dashboard

A single live picture of the bulk fleet — every voyage plan with real-time status updates, so teams track readiness and approvals at a glance.

  • Statuses: Optimized · Redacted · In Progress · Confirmed
  • Visibility across the full stowage planning lifecycle
  • Live deviation flags as voyages execute

Scenario Comparison & Finalization

Run alternative loading patterns, vessel pairings and port rotations side-by-side. Review loading performance, fuel use and stability — pick the optimal plan on commercial impact.

  • Side-by-side stowage plan comparison
  • Commercial impact + stability + fuel reviewed together
  • AI-assisted to cut decision-making cycle times

Commercial Self-Sufficiency

Chartering professionals make faster, data-driven decisions independently — without waiting on captains or operations teams for preliminary feasibility checks.

  • Instant feasibility checks at the chartering desk
  • Reduced reliance on shipboard and marine-ops staff
  • Consistent answers, regardless of who is asking

Tank Sequence & Trim Logic

Tank sequence enforced to keep the vessel within stability and trim limits across the full voyage — not just at departure. Fuel burn at sea and in port falls out of the same model as a downstream effect.

  • Tank sequence enforced for trim and stability
  • Stability maintained across the voyage, not only at departure
  • Fuel burn surfaces in plan comparison as a downstream effect

Save & Reuse Plans

Store cargo plans and refine with a few clicks. Historical stowage data generates the next optimized loading strategy — every plan you close makes the next one faster.

  • Save voyage plans as templates
  • Reuse and refine in a few clicks
  • Historical data seeds future optimizations

AI/ML-Powered Decision Making

Models trained on real bulk-trade patterns surface the option a human planner would miss — and learn from every fixture you close.

  • Captures and codifies expert know-how
  • Retains critical competencies despite team attrition
  • Improves with every voyage the fleet runs

Why this exists

The pressures every bulk operator is feeling right now.

BOPT is built around the eight structural challenges shaping dry bulk in this cycle — and the ones that will shape the next.

Fierce Market Competition

Margins compress, charterers shop harder, every fixture is contested. Speed and accuracy of response decide who wins the cargo.

Economic Volatility

Freight indices swing, demand cycles compress, geopolitical shocks reroute trades overnight. Planning horizons are shorter than ever.

Stability & Compliance Complexity

Every load plan must clear GM, trim, deflection, SFBM, shear and bending — and stay within load-line zones across the route. One miscalculation puts the vessel off-hire or worse.

Regulatory Pressures

Environmental and industry regulations evolve faster than spreadsheets can track. Load-line zones, emission rules and compliance reporting all bite into voyage economics.

Supply/Demand Mismatch

Tonnage in the wrong basin, cargoes without ships, ships without cargoes — the matching problem gets worse the bigger the fleet.

Talent Dilution

Senior planners retire faster than they can be replaced. The knowledge that wins fixtures walks out the door with them.

Data-Driven Decision Making

Operators are awash in data — bunkers, weather, port congestion, demurrage — but starved of decisions. Insight without action is overhead.

Continuous Innovation

What worked last cycle won't win the next one. Bulk operators need a planning stack that improves every quarter, not every five years.

The philosophy behind BOPT

“At Solverminds, we believe the future lies in automating knowledge, not just workflows.”

Bulk operations have always run on the judgment of a few senior planners. BOPT captures that judgment in an engine — so it scales with the fleet, survives the retirement wave, and gets sharper with every voyage.

“Technology doesn't replace talent — it amplifies it, and protects it.”

The questions bulk operators ask

What BOPT answers.

Pre-fixture loadability check

Will the cargo actually fit — and earn — on this vessel?

Grade compatibility, density, draft and parcel sequencing simulated before the fixture commits. Voyage P&L falls out of a loadable plan.

Re-stow on demand

How fast can I rework the load plan when cargo specs change?

Minutes, not days. Re-validate GM, trim and stress charts when grade, parcel mix or draft inputs shift mid-rotation.

Loading optimization

Am I leaving tonnage — and margin — on the table?

Grade compatibility, density, and parcel sequencing baked in — pack vessels fuller, faster, without grade-mix risk.

Bulk operators · Chartering teams

Boost your bulk shipping performance — see BOPT on your fleet.

Walkthrough using your vessels, cargoes and ports. BOPT deploys as SaaS — independent from your ERP, integrates via API.