Match your preparation to the trading, technology or finance role and distinguish official guidance from candidate-reported assessment stages.
By the Game Assessment Prep research teamUpdated September 14, 2026How we research
Available reports describe a mixture of assessment formats. They do not identify a verified set of named HireVue games. Prepare the underlying skills only where they match your invitation.
Category practice
An August 2026 trading applicant describes mental arithmetic and analysis of reports. Practice percentages, ratios and reading tables as general preparation; no exact simulator or vendor-specific test is confirmed here.
CCI here means Castleton Commodities International, the energy markets and infrastructure investment business. Its combination of physical markets, financial trading and assets makes commercial reasoning and data quality useful preparation themes. Identify the employing entity and desk in your vacancy rather than relying on the initials alone.
A trading applicant and a software or finance applicant can encounter different technical expectations. Use candidate reports to identify areas worth practicing, while keeping the employer’s actual instructions as the authority on format, allowed tools and timing.
CCI describes a two-year trading rotation, with European opportunities based in London and possible Geneva rotations, and US opportunities in Houston and Stamford. Physical and financial market exposure depends on location.
Source: CCI — Students
The US program includes four six-month rotations across supporting functions. Its separate summer internship provides a shorter introduction to operations and finance work.
Source: CCI — Students
CCI’s technology group emphasizes data science and collaboration with commercial teams, with work ranging from front-office tools to infrastructure. Risk, finance and operations are distinct career groups; a trading-program interview report does not establish their assessment content.
Source: CCI — Groups at CCI
August 2026 trading and internship reports describe HireVue interviews. A trading analyst report also describes mental arithmetic, report analysis and a later HackerRank exercise. These are candidate accounts, not an employer-wide platform announcement.
A separate rotational-trading applicant describes case work, live coding and behavioral interviewing, mentioning Python and SQL in a follow-up. Another commenter recalls a different earlier format, which reinforces the need to check your own invitation.
Source: Reddit — Rotational Trading graduate program candidate discussion
CCI’s risk team describes portfolio aggregation, diversification, stress testing and independent oversight. Practicing how an investment idea could fail is therefore a reasoned preparation choice, not a claim that these are guaranteed interview questions.
Source: CCI — Risk Management
The reviewed employer guidance does not establish a universal test timer, score cutoff, retake rule or named game lineup. Settings described by another candidate cannot safely be assumed for a different invitation.
The campus FAQ explains submission and communication, without publishing the entire technical screening sequence.
Source: CCI — Students: recruitment FAQ
The rotational-trading discussion is useful evidence that technical work can appear alongside commercial discussion, but it is an individual account with no fully established location or current-cycle scope.
Source: Reddit — Rotational Trading graduate program candidate discussion
CCI’s published group descriptions explain how different teams contribute to the same commercial platform. These are preparation implications rather than an official interview sequence.
Source: CCI — Groups at CCI
Campus recruitment windows differ by region and program. Treat broad published seasonal guidance as a planning aid, then use the exact requisition deadline.
| Cycle | Application dates | Likely assessment window | Evidence |
|---|---|---|---|
| Campus applications | Published guidance: US trading early September; UK trading late September | Invitation-specific; no universal completion window published | Official source CCI describes campus recruitment beginning in late July, with separate dates by program. Finance/operations guidance points to mid-September. These are general windows, not confirmation that an individual vacancy remains open. Source: CCI — Students |
| Experienced and specialist vacancies | Use the vacancy closing date | Role-specific | No evidence found The careers site directs applicants to individual openings across several business groups. It does not publish a single experienced-hire timetable. Source: CCI — Careers |
Build a preparation plan around the decisions you would make in the role. A small, well-explained analysis is often a better rehearsal than memorizing broad commodity terminology. These are suggested exercises, not disclosed CCI questions.
Pick one energy market and describe a supply or demand change. Explain the possible price effect, what is already reflected in expectations and what could invalidate your view. State assumptions separately from measured facts.
Work from a small table of prices, volumes and dates. Calculate changes, weighted averages and scenario outcomes, keeping units visible. Check whether an apparently attractive result comes from inconsistent periods, signs or denominators.
For a technical invitation, rehearse cleaning a time series, joining data and testing missing or duplicate records. Explain both the implementation and the consequence of an error for a downstream user. Use a fresh dataset rather than rehearsed answer code.
Prepare an example where you revised an approach after new evidence or a colleague’s challenge. Describe your personal decision, the controls you used and what you learned. Connect initiative with accountability rather than claiming you never make mistakes.
Recent candidate reports name HireVue for some trading and internship interviews. This is not confirmation that every CCI role uses it or includes games.
Coding appears in both recent trading reports and a separate rotational-program account. Check your own invitation for the required language and format before choosing technical practice.
No. CCI describes them as separate programs with different work and rotations. Match examples to the program you selected.
Castleton Commodities International, the business combining energy market activity with infrastructure asset investing. Check the full employer name when comparing interview reports.
Practice explaining an energy-market view with its assumptions, risks and evidence. CCI’s business and risk descriptions support this preparation theme, but no particular market question is guaranteed.
The sources below support this guide. Claim labels distinguish official information, candidate reports, and research inferences.
Castleton Commodities International · Accessed
Castleton Commodities International · Accessed
Castleton Commodities International · Accessed
Castleton Commodities International · Accessed
Castleton Commodities International · Accessed
Glassdoor · Accessed
Reddit / r/Commodities · Accessed
4,700+ candidates from MIT, Stanford, Harvard, Yale and 100+ universities have run 68,000+ practice sessions here · median +25% score improvement by the fifth attempt · 84% of 6,000+ game ratings say “Great”.
Match your preparation to the trading, technology or finance role and distinguish official guidance from candidate-reported assessment stages.
By the Game Assessment Prep research teamUpdated September 14, 2026How we research
Available reports describe a mixture of assessment formats. They do not identify a verified set of named HireVue games. Prepare the underlying skills only where they match your invitation.
Category practice
An August 2026 trading applicant describes mental arithmetic and analysis of reports. Practice percentages, ratios and reading tables as general preparation; no exact simulator or vendor-specific test is confirmed here.
CCI here means Castleton Commodities International, the energy markets and infrastructure investment business. Its combination of physical markets, financial trading and assets makes commercial reasoning and data quality useful preparation themes. Identify the employing entity and desk in your vacancy rather than relying on the initials alone.
A trading applicant and a software or finance applicant can encounter different technical expectations. Use candidate reports to identify areas worth practicing, while keeping the employer’s actual instructions as the authority on format, allowed tools and timing.
CCI describes a two-year trading rotation, with European opportunities based in London and possible Geneva rotations, and US opportunities in Houston and Stamford. Physical and financial market exposure depends on location.
Source: CCI — Students
The US program includes four six-month rotations across supporting functions. Its separate summer internship provides a shorter introduction to operations and finance work.
Source: CCI — Students
CCI’s technology group emphasizes data science and collaboration with commercial teams, with work ranging from front-office tools to infrastructure. Risk, finance and operations are distinct career groups; a trading-program interview report does not establish their assessment content.
Source: CCI — Groups at CCI
August 2026 trading and internship reports describe HireVue interviews. A trading analyst report also describes mental arithmetic, report analysis and a later HackerRank exercise. These are candidate accounts, not an employer-wide platform announcement.
A separate rotational-trading applicant describes case work, live coding and behavioral interviewing, mentioning Python and SQL in a follow-up. Another commenter recalls a different earlier format, which reinforces the need to check your own invitation.
Source: Reddit — Rotational Trading graduate program candidate discussion
CCI’s risk team describes portfolio aggregation, diversification, stress testing and independent oversight. Practicing how an investment idea could fail is therefore a reasoned preparation choice, not a claim that these are guaranteed interview questions.
Source: CCI — Risk Management
The reviewed employer guidance does not establish a universal test timer, score cutoff, retake rule or named game lineup. Settings described by another candidate cannot safely be assumed for a different invitation.
The campus FAQ explains submission and communication, without publishing the entire technical screening sequence.
Source: CCI — Students: recruitment FAQ
The rotational-trading discussion is useful evidence that technical work can appear alongside commercial discussion, but it is an individual account with no fully established location or current-cycle scope.
Source: Reddit — Rotational Trading graduate program candidate discussion
CCI’s published group descriptions explain how different teams contribute to the same commercial platform. These are preparation implications rather than an official interview sequence.
Source: CCI — Groups at CCI
Campus recruitment windows differ by region and program. Treat broad published seasonal guidance as a planning aid, then use the exact requisition deadline.
| Cycle | Application dates | Likely assessment window | Evidence |
|---|---|---|---|
| Campus applications | Published guidance: US trading early September; UK trading late September | Invitation-specific; no universal completion window published | Official source CCI describes campus recruitment beginning in late July, with separate dates by program. Finance/operations guidance points to mid-September. These are general windows, not confirmation that an individual vacancy remains open. Source: CCI — Students |
| Experienced and specialist vacancies | Use the vacancy closing date | Role-specific | No evidence found The careers site directs applicants to individual openings across several business groups. It does not publish a single experienced-hire timetable. Source: CCI — Careers |
Build a preparation plan around the decisions you would make in the role. A small, well-explained analysis is often a better rehearsal than memorizing broad commodity terminology. These are suggested exercises, not disclosed CCI questions.
Pick one energy market and describe a supply or demand change. Explain the possible price effect, what is already reflected in expectations and what could invalidate your view. State assumptions separately from measured facts.
Work from a small table of prices, volumes and dates. Calculate changes, weighted averages and scenario outcomes, keeping units visible. Check whether an apparently attractive result comes from inconsistent periods, signs or denominators.
For a technical invitation, rehearse cleaning a time series, joining data and testing missing or duplicate records. Explain both the implementation and the consequence of an error for a downstream user. Use a fresh dataset rather than rehearsed answer code.
Prepare an example where you revised an approach after new evidence or a colleague’s challenge. Describe your personal decision, the controls you used and what you learned. Connect initiative with accountability rather than claiming you never make mistakes.
Recent candidate reports name HireVue for some trading and internship interviews. This is not confirmation that every CCI role uses it or includes games.
Coding appears in both recent trading reports and a separate rotational-program account. Check your own invitation for the required language and format before choosing technical practice.
No. CCI describes them as separate programs with different work and rotations. Match examples to the program you selected.
Castleton Commodities International, the business combining energy market activity with infrastructure asset investing. Check the full employer name when comparing interview reports.
Practice explaining an energy-market view with its assumptions, risks and evidence. CCI’s business and risk descriptions support this preparation theme, but no particular market question is guaranteed.
The sources below support this guide. Claim labels distinguish official information, candidate reports, and research inferences.
Castleton Commodities International · Accessed
Castleton Commodities International · Accessed
Castleton Commodities International · Accessed
Castleton Commodities International · Accessed
Castleton Commodities International · Accessed
Glassdoor · Accessed
Reddit / r/Commodities · Accessed
4,700+ candidates · 68,000+ practice sessions across Game Assessment Prep.